APOD: 2025 January 25 - Stardust in the Perseus Molecular Cloud
Clouds of stardust drift through
https://apod.nasa.gov/apod/ap250125.html
Clouds of stardust drift through
https://apod.nasa.gov/apod/ap250125.html
AstroNexus
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( RESEARCH WING OF IMPERIAL ASTRONOMICAL SOCIETY)
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Join us in unraveling the mysteries of the universe and expanding your knowledge of the cosmos. Whether you are a seasoned space enthusiast or someone who is just starting to delve into the wonders of astronomy, AstroNexus offers something for everyone
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AstroNexus
25 Jan, 14:13
Astronomy Picture of the Day RSS Feed
Stardust in the Perseus Molecular Cloud
https://apod.nasa.gov/apod/image/2501/ngc1333_jeff_version_4_1024.jpg Stardust in the Perseus Molecular Cloud
Clouds of stardust drift through this deep skyscape,
across the Perseus molecular cloud
some 850 light-years away.
Dusty nebulae reflecting light from embedded young stars
stand out in the nearly 4 degree
wide field of view.
With a characteristic bluish color reflection nebula NGC 1333 is
prominent near center.
Hints of contrasting red emission from Herbig-Haro objects,
the jets and shocked glowing gas emanating from recently formed stars,
are scattered across the dusty expanse.
While many stars are forming
in the molecular cloud, most
are obscured at visible wavelengths by the pervasive dust.
The chaotic environment surrounding NGC 1333
may be similar to one in which our own Sun
formed over 4.5 billion years ago.
At the estimated distance of the Perseus molecular cloud,
this cosmic scene would span about 80 light-years.
Stardust in the Perseus Molecular Cloud
https://apod.nasa.gov/apod/image/2501/ngc1333_jeff_version_4_1024.jpg Stardust in the Perseus Molecular Cloud
Clouds of stardust drift through this deep skyscape,
across the Perseus molecular cloud
some 850 light-years away.
Dusty nebulae reflecting light from embedded young stars
stand out in the nearly 4 degree
wide field of view.
With a characteristic bluish color reflection nebula NGC 1333 is
prominent near center.
Hints of contrasting red emission from Herbig-Haro objects,
the jets and shocked glowing gas emanating from recently formed stars,
are scattered across the dusty expanse.
While many stars are forming
in the molecular cloud, most
are obscured at visible wavelengths by the pervasive dust.
The chaotic environment surrounding NGC 1333
may be similar to one in which our own Sun
formed over 4.5 billion years ago.
At the estimated distance of the Perseus molecular cloud,
this cosmic scene would span about 80 light-years.
AstroNexus
25 Jan, 09:19
APOD: 2025 January 24 - Comet G3 ATLAS: a Tail and a Telescope
Comet G3 ATLAS: a Tail and a Telescope
https://apod.nasa.gov/apod/ap250124.html
Comet G3 ATLAS: a Tail and a Telescope
https://apod.nasa.gov/apod/ap250124.html
AstroNexus
24 Jan, 14:12
Astronomy Picture of the Day RSS Feed
Comet G3 ATLAS: a Tail and a Telescope
https://apod.nasa.gov/apod/image/2501/C2024G3_ATLAS_ESO_Beletsky.jpg Comet G3 ATLAS: a Tail and a Telescope Comet C/2024 G3 ATLAS
has made a dramatic appearance in planet Earth's skies.
A visitor from the distant Oort Cloud,
the comet reached its perihelion on January 13.
On January 19, the bright comet was captured here
from ESO Paranal Observatory in the Atacama desert in Chile.
Sporting spectacular sweeping dust tails,
this comet ATLAS is setting in the southern hemisphere twilight
and was clearly
visible to the unaided eye.
In the foreground is the closed shell of
one of the observatory's famous auxiliary telescopes.
Still wowing southern hemisphere observers,
the comet's bright coma has become diffuse, its icy nucleus
apparently disintegrating following its close approach to the Sun.
Comet G3 ATLAS: a Tail and a Telescope
https://apod.nasa.gov/apod/image/2501/C2024G3_ATLAS_ESO_Beletsky.jpg Comet G3 ATLAS: a Tail and a Telescope Comet C/2024 G3 ATLAS
has made a dramatic appearance in planet Earth's skies.
A visitor from the distant Oort Cloud,
the comet reached its perihelion on January 13.
On January 19, the bright comet was captured here
from ESO Paranal Observatory in the Atacama desert in Chile.
Sporting spectacular sweeping dust tails,
this comet ATLAS is setting in the southern hemisphere twilight
and was clearly
visible to the unaided eye.
In the foreground is the closed shell of
one of the observatory's famous auxiliary telescopes.
Still wowing southern hemisphere observers,
the comet's bright coma has become diffuse, its icy nucleus
apparently disintegrating following its close approach to the Sun.
AstroNexus
24 Jan, 13:22
Astronomy & Observing News β Sky & Telescope
This Week's Sky at a Glance, January 24 β February 2
Mars pulls away from Pollux this week. The winter Milky Way crosses the zenith. Lepus, the Hare under Orion's feet, offers a famous nearby double star and a rare winter globular cluster.
The post This Week's Sky at a Glance, January 24 β February 2 appeared first on Sky & Telescope.
This Week's Sky at a Glance, January 24 β February 2
Mars pulls away from Pollux this week. The winter Milky Way crosses the zenith. Lepus, the Hare under Orion's feet, offers a famous nearby double star and a rare winter globular cluster.
The post This Week's Sky at a Glance, January 24 β February 2 appeared first on Sky & Telescope.
AstroNexus
24 Jan, 08:52
APOD: 2025 January 23 - NGC 7814: Little Sombrero
Point your telescope toward the high flying constellation
https://apod.nasa.gov/apod/ap250123.html
Point your telescope toward the high flying constellation
https://apod.nasa.gov/apod/ap250123.html
AstroNexus
23 Jan, 21:22
Astronomy & Observing News β Sky & Telescope
Supernova Echoes Probe Clouds in the Milky Way
As a blast from the past reverberates through our galaxy, it illuminates the fine structure of dusty gas that may someday form new stars.
The post Supernova Echoes Probe Clouds in the Milky Way appeared first on Sky & Telescope.
Supernova Echoes Probe Clouds in the Milky Way
As a blast from the past reverberates through our galaxy, it illuminates the fine structure of dusty gas that may someday form new stars.
The post Supernova Echoes Probe Clouds in the Milky Way appeared first on Sky & Telescope.
AstroNexus
23 Jan, 17:21
Astronomy & Observing News β Sky & Telescope
Disintegrating World Is Shedding Comet-like Tail
Astronomers have spotted a disintegrating world being destroyed by its star, providing a unique window into the end of a planetβs life.
The post Disintegrating World Is Shedding Comet-like Tail appeared first on Sky & Telescope.
Disintegrating World Is Shedding Comet-like Tail
Astronomers have spotted a disintegrating world being destroyed by its star, providing a unique window into the end of a planetβs life.
The post Disintegrating World Is Shedding Comet-like Tail appeared first on Sky & Telescope.
AstroNexus
23 Jan, 14:11
Astronomy Picture of the Day RSS Feed
NGC 7814: Little Sombrero
https://apod.nasa.gov/apod/image/2501/NGC_7814_crop-rev-1_1024.jpg NGC 7814: Little Sombrero
Point your telescope toward the high flying constellation Pegasus
and you can find this cosmic expanse of Milky Way stars and distant galaxies.
NGC 7814 is centered in the sharp
field of view that would almost
be covered by a full moon. NGC 7814 is
sometimes called the Little Sombrero
for its resemblance to the brighter more famous M104, the Sombrero Galaxy.
Both Sombrero and Little Sombrero are spiral galaxies
seen edge-on, and both have extensive halos
and central bulges cut by a thin disk with thinner dust lanes in silhouette. In fact, NGC 7814
is some 40 million light-years away and an estimated 60,000 light-years
across.
That actually makes the Little
Sombrero
about the same physical size as
its better known namesake, appearing smaller and fainter
only because it is farther away.
NGC 7814: Little Sombrero
https://apod.nasa.gov/apod/image/2501/NGC_7814_crop-rev-1_1024.jpg NGC 7814: Little Sombrero
Point your telescope toward the high flying constellation Pegasus
and you can find this cosmic expanse of Milky Way stars and distant galaxies.
NGC 7814 is centered in the sharp
field of view that would almost
be covered by a full moon. NGC 7814 is
sometimes called the Little Sombrero
for its resemblance to the brighter more famous M104, the Sombrero Galaxy.
Both Sombrero and Little Sombrero are spiral galaxies
seen edge-on, and both have extensive halos
and central bulges cut by a thin disk with thinner dust lanes in silhouette. In fact, NGC 7814
is some 40 million light-years away and an estimated 60,000 light-years
across.
That actually makes the Little
Sombrero
about the same physical size as
its better known namesake, appearing smaller and fainter
only because it is farther away.
AstroNexus
23 Jan, 08:26
APOD: 2025 January 22 β The North America Nebula
https://apod.nasa.gov/apod/ap250122.html
https://apod.nasa.gov/apod/ap250122.html
AstroNexus
22 Jan, 21:20
Astronomy & Observing News β Sky & Telescope
Hear the First-ever Recording of a Meteorite Slamming into the Ground
To our best knowledge, the fall of last summer's Charlottetown meteorite stands as the only audio recording of a meteorite impact.
The post Hear the First-ever Recording of a Meteorite Slamming into the Ground appeared first on Sky & Telescope.
Hear the First-ever Recording of a Meteorite Slamming into the Ground
To our best knowledge, the fall of last summer's Charlottetown meteorite stands as the only audio recording of a meteorite impact.
The post Hear the First-ever Recording of a Meteorite Slamming into the Ground appeared first on Sky & Telescope.
AstroNexus
22 Jan, 17:19
Astronomy & Observing News β Sky & Telescope
New Distance Measurement Highlights Cosmic Tension
The distance to the Coma galaxy cluster highlights a discrepancy between different measurements of the universe's current expansion rate.
The post New Distance Measurement Highlights Cosmic Tension appeared first on Sky & Telescope.
New Distance Measurement Highlights Cosmic Tension
The distance to the Coma galaxy cluster highlights a discrepancy between different measurements of the universe's current expansion rate.
The post New Distance Measurement Highlights Cosmic Tension appeared first on Sky & Telescope.
AstroNexus
22 Jan, 14:11
Astronomy Picture of the Day RSS Feed
APOD: 2025 January 22 β The North America Nebula
https://apod.nasa.gov/apod/image/2501/NGC7000_Valianos_960.jpg APOD: 2025 January 22 β The North America Nebula The North America nebula
on the sky can do what the North America continent
on Earth cannot -- form stars.
Specifically, in analogy to the Earth-confined continent,
the bright part that appears as the east coast
is actually a hot bed of gas, dust, and newly formed stars known as the Cygnus Wall.
The featured image
shows the star forming wall lit and eroded by bright young stars and partly hidden by the dark dust they have created.
The part of the North America nebula
(NGC 7000) shown spans about 50 light years
and lies about 1,500 light years away toward the constellation
of the Swan
(Cygnus).
APOD: 2025 January 22 β The North America Nebula
https://apod.nasa.gov/apod/image/2501/NGC7000_Valianos_960.jpg APOD: 2025 January 22 β The North America Nebula The North America nebula
on the sky can do what the North America continent
on Earth cannot -- form stars.
Specifically, in analogy to the Earth-confined continent,
the bright part that appears as the east coast
is actually a hot bed of gas, dust, and newly formed stars known as the Cygnus Wall.
The featured image
shows the star forming wall lit and eroded by bright young stars and partly hidden by the dark dust they have created.
The part of the North America nebula
(NGC 7000) shown spans about 50 light years
and lies about 1,500 light years away toward the constellation
of the Swan
(Cygnus).
AstroNexus
22 Jan, 08:17
APOD: 2025 January 21 β Comet ATLAS over Brasilia
What's that in the sky?
https://apod.nasa.gov/apod/ap250121.html
What's that in the sky?
https://apod.nasa.gov/apod/ap250121.html
AstroNexus
21 Jan, 14:11
Astronomy Picture of the Day RSS Feed
APOD: 2025 January 21 β Comet ATLAS over Brasilia
https://apod.nasa.gov/apod/image/2501/CometATLAS_Danin_1080.jpg APOD: 2025 January 21 β Comet ATLAS over Brasilia What's that in the sky?
Above the city, above most clouds, far in the distance: it's a comet. Pictured,
the impressive tail of Comet C/2024 G3 (ATLAS)
was imaged from BrasΓlia, Brazil four days ago.
Last week the evolving comet rounded the Sun
well inside the orbit of planet Mercury,
going so close there was early concern that it might break up -- and recent evidence that it really did.
At one point near perihelion, Comet ATLAS was so bright
that sightings were even reported during the day -- over the bright sky near the Sun -- by careful observers.
Over the past few days, Comet ATLAS
has developed a long tail that has been partly
visible with unaided eyes after sunset,
most notably in Earth's southern hemisphere.
APOD: 2025 January 21 β Comet ATLAS over Brasilia
https://apod.nasa.gov/apod/image/2501/CometATLAS_Danin_1080.jpg APOD: 2025 January 21 β Comet ATLAS over Brasilia What's that in the sky?
Above the city, above most clouds, far in the distance: it's a comet. Pictured,
the impressive tail of Comet C/2024 G3 (ATLAS)
was imaged from BrasΓlia, Brazil four days ago.
Last week the evolving comet rounded the Sun
well inside the orbit of planet Mercury,
going so close there was early concern that it might break up -- and recent evidence that it really did.
At one point near perihelion, Comet ATLAS was so bright
that sightings were even reported during the day -- over the bright sky near the Sun -- by careful observers.
Over the past few days, Comet ATLAS
has developed a long tail that has been partly
visible with unaided eyes after sunset,
most notably in Earth's southern hemisphere.
AstroNexus
20 Jan, 21:18
Astronomy & Observing News β Sky & Telescope
Comet ATLAS Caught in the Act of Disintegration
Nucleus falls to pieces, but the comet continues on!
The post Comet ATLAS Caught in the Act of Disintegration appeared first on Sky & Telescope.
Comet ATLAS Caught in the Act of Disintegration
Nucleus falls to pieces, but the comet continues on!
The post Comet ATLAS Caught in the Act of Disintegration appeared first on Sky & Telescope.
AstroNexus
20 Jan, 17:18
Astronomy & Observing News β Sky & Telescope
Supernovae May Have Shaped the Early Universe, Webb Finds
Astronomers have discovered one of the earliest supernovae yet and found that exploding stars may have contributed to the enrichment of the young universe.
The post Supernovae May Have Shaped the Early Universe, Webb Finds appeared first on Sky & Telescope.
Supernovae May Have Shaped the Early Universe, Webb Finds
Astronomers have discovered one of the earliest supernovae yet and found that exploding stars may have contributed to the enrichment of the young universe.
The post Supernovae May Have Shaped the Early Universe, Webb Finds appeared first on Sky & Telescope.
AstroNexus
20 Jan, 14:10
Astronomy Picture of the Day RSS Feed
APOD: 2025 January 20 β Comet ATLAS Rounds the Sun
https://apod.nasa.gov/apod/image/2501/CometG3Perihelion_SohoLigustri_960.jpg APOD: 2025 January 20 β Comet ATLAS Rounds the Sun Why does Comet ATLAS have such colorful tails?
Last week Comet C/2024 G3 (ATLAS) passed its closest to the Sun --
well inside the orbit of Mercury -- and brightened dramatically.
Unfortunately, the comet was then so angularly
near the Sun that it was very hard for humans to see.
But NASA's SOHO spacecraft saw it.
Pictured is a SOHO
(LASCO C3)
image of Comet ATLAS
that is a composite of several different color filters.
Of the several tails visible, the central white tails are likely made of dust and just reflecting back sunlight.
The red, blue, and green tails are likely ion tails with their colors dominated by
light emitted by specific gases that were ejected
from the comet and energized by the Sun.
Currently, Comet ATLAS is showing long tails in southern skies but
fading as it moves out of the inner Solar System.
β Sent by @TheFeedReaderBot β
APOD: 2025 January 20 β Comet ATLAS Rounds the Sun
https://apod.nasa.gov/apod/image/2501/CometG3Perihelion_SohoLigustri_960.jpg APOD: 2025 January 20 β Comet ATLAS Rounds the Sun Why does Comet ATLAS have such colorful tails?
Last week Comet C/2024 G3 (ATLAS) passed its closest to the Sun --
well inside the orbit of Mercury -- and brightened dramatically.
Unfortunately, the comet was then so angularly
near the Sun that it was very hard for humans to see.
But NASA's SOHO spacecraft saw it.
Pictured is a SOHO
(LASCO C3)
image of Comet ATLAS
that is a composite of several different color filters.
Of the several tails visible, the central white tails are likely made of dust and just reflecting back sunlight.
The red, blue, and green tails are likely ion tails with their colors dominated by
light emitted by specific gases that were ejected
from the comet and energized by the Sun.
Currently, Comet ATLAS is showing long tails in southern skies but
fading as it moves out of the inner Solar System.
β Sent by @TheFeedReaderBot β
AstroNexus
20 Jan, 08:06
APOD: 2025 January 19 β Titan Touchdown: Huygens Descent Movie
https://www.youtube.com/embed/msiLWxDayuA?rel=0
https://apod.nasa.gov/apod/ap250119.html
https://www.youtube.com/embed/msiLWxDayuA?rel=0
https://apod.nasa.gov/apod/ap250119.html
AstroNexus
19 Jan, 14:09
Astronomy Picture of the Day RSS Feed
APOD: 2025 January 19 β Titan Touchdown: Huygens Descent Movie
APOD: 2025 January 19 β Titan Touchdown: Huygens Descent Movie What would it look like to land on Saturn's moon Titan?
The European Space Agency's
Huygens probe set down on the Solar System's
cloudiest moon in 2005, and a time-lapse video of its descent images was created. Huygens separated from the robotic Cassini spacecraft soon after it
achieved orbit around Saturn in late 2004 and began approaching Titan.
For two hours after arriving, Huygens plummeted toward Titan's surface,
recording at first only the shrouded moon's opaque
atmosphere.
The computerized truck-tire sized probe soon deployed a parachute to slow its descent,
pierced the thick clouds, and began transmitting images of a strange surface
far below never before seen in visible light.
Landing in a dried sea and surviving for 90 minutes, Huygen's returned
unique images of a strange plain
of dark sandy soil strewn with smooth, bright, fist-sized rocks of ice.
APOD: 2025 January 19 β Titan Touchdown: Huygens Descent Movie
APOD: 2025 January 19 β Titan Touchdown: Huygens Descent Movie What would it look like to land on Saturn's moon Titan?
The European Space Agency's
Huygens probe set down on the Solar System's
cloudiest moon in 2005, and a time-lapse video of its descent images was created. Huygens separated from the robotic Cassini spacecraft soon after it
achieved orbit around Saturn in late 2004 and began approaching Titan.
For two hours after arriving, Huygens plummeted toward Titan's surface,
recording at first only the shrouded moon's opaque
atmosphere.
The computerized truck-tire sized probe soon deployed a parachute to slow its descent,
pierced the thick clouds, and began transmitting images of a strange surface
far below never before seen in visible light.
Landing in a dried sea and surviving for 90 minutes, Huygen's returned
unique images of a strange plain
of dark sandy soil strewn with smooth, bright, fist-sized rocks of ice.
AstroNexus
19 Jan, 07:58
APOD: 2025 January 18 - Full Moon, Full Mars
Full Moon, Full Mars
https://apod.nasa.gov/apod/ap250118.html
Full Moon, Full Mars
https://apod.nasa.gov/apod/ap250118.html
AstroNexus
18 Jan, 14:09
Astronomy Picture of the Day RSS Feed
Full Moon, Full Mars
https://apod.nasa.gov/apod/image/2501/MarsLOc_Jan13_1024c.jpg Full Moon, Full Mars On January 13
a Full Moon and a Full Mars were close,
both bright and opposite the Sun in planet Earth's sky. In fact
Mars was occulted, passing behind the Moon, when
viewed from some locations in North America and northwest Africa.
As seen from Richmond, Virginia, USA, this composite
image sequence follows the evening
lunar occultation before, during, and after the much anticipated celestial spectacle.
The telescopic time series is constructed from an exposure made every two
minutes while tracking the Moon over the hours encompassing the event.
As a result, the Red Planet's trajectory seems to follow
a gently curved path due to the
Moon's slightly different rate of apparent motion.
The next lunar occultation of bright planet Mars will be
on February 9 when the moon is in a waxing gibbous phase. Lunar occultations are only ever visible from a fraction of the
Earth's surface, though. The
February 9 occultation of Mars will be seen from parts of
Russia, China, eastern Canada, Greenland and other
(mostly northern) locations,
but a close conjunction of a bright Moon with Mars will be more
widely visible from planet Earth.
Full Moon, Full Mars
https://apod.nasa.gov/apod/image/2501/MarsLOc_Jan13_1024c.jpg Full Moon, Full Mars On January 13
a Full Moon and a Full Mars were close,
both bright and opposite the Sun in planet Earth's sky. In fact
Mars was occulted, passing behind the Moon, when
viewed from some locations in North America and northwest Africa.
As seen from Richmond, Virginia, USA, this composite
image sequence follows the evening
lunar occultation before, during, and after the much anticipated celestial spectacle.
The telescopic time series is constructed from an exposure made every two
minutes while tracking the Moon over the hours encompassing the event.
As a result, the Red Planet's trajectory seems to follow
a gently curved path due to the
Moon's slightly different rate of apparent motion.
The next lunar occultation of bright planet Mars will be
on February 9 when the moon is in a waxing gibbous phase. Lunar occultations are only ever visible from a fraction of the
Earth's surface, though. The
February 9 occultation of Mars will be seen from parts of
Russia, China, eastern Canada, Greenland and other
(mostly northern) locations,
but a close conjunction of a bright Moon with Mars will be more
widely visible from planet Earth.
AstroNexus
18 Jan, 07:37
APOD: 2025 January 17 - Supernova Remnant Cassiopeia A
Supernova Remnant Cassiopeia A
https://apod.nasa.gov/apod/ap250117.html
Supernova Remnant Cassiopeia A
https://apod.nasa.gov/apod/ap250117.html
AstroNexus
17 Jan, 18:05
Astronomy Picture of the Day RSS Feed
Supernova Remnant Cassiopeia A
https://apod.nasa.gov/apod/image/2501/CasA_nircam_1024.jpg Supernova Remnant Cassiopeia A Massive stars
in our Milky Way Galaxy live spectacular lives.
Collapsing from vast cosmic clouds, their nuclear furnaces
ignite and create heavy elements in their cores.
After only a few million years for the most massive stars, the enriched material is blasted
back into interstellar space where star formation can begin anew.
The expanding debris cloud known as Cassiopeia A is an example
of this final phase of the stellar life cycle.
Light from the supernova explosion that created this remnant
would have been first seen in planet Earth's sky
about 350 years ago,
although it took that light 11,000 years to reach us. This sharp NIRCam image
from the James Webb Space Telescope
shows the still hot filaments and knots in the supernova remnant.
The whitish, smoke-like outer shell of the expanding blast wave
is about 20 light-years across.
A series of light echoes
from the massive star's cataclysmic explosion are also identified
in Webb's detailed images
of the surrounding interstellar medium.
Supernova Remnant Cassiopeia A
https://apod.nasa.gov/apod/image/2501/CasA_nircam_1024.jpg Supernova Remnant Cassiopeia A Massive stars
in our Milky Way Galaxy live spectacular lives.
Collapsing from vast cosmic clouds, their nuclear furnaces
ignite and create heavy elements in their cores.
After only a few million years for the most massive stars, the enriched material is blasted
back into interstellar space where star formation can begin anew.
The expanding debris cloud known as Cassiopeia A is an example
of this final phase of the stellar life cycle.
Light from the supernova explosion that created this remnant
would have been first seen in planet Earth's sky
about 350 years ago,
although it took that light 11,000 years to reach us. This sharp NIRCam image
from the James Webb Space Telescope
shows the still hot filaments and knots in the supernova remnant.
The whitish, smoke-like outer shell of the expanding blast wave
is about 20 light-years across.
A series of light echoes
from the massive star's cataclysmic explosion are also identified
in Webb's detailed images
of the surrounding interstellar medium.
AstroNexus
17 Jan, 17:16
Astronomy & Observing News β Sky & Telescope
Mysterious βLittle Red Dotsβ Give Clues to Early Black Holesβ Formation
A new look at small red galaxies known as βlittle red dotsβ reveals that theyβre surprisingly abundant in the early universe.
The post Mysterious βLittle Red Dotsβ Give Clues to Early Black Holesβ Formation appeared first on Sky & Telescope.
Mysterious βLittle Red Dotsβ Give Clues to Early Black Holesβ Formation
A new look at small red galaxies known as βlittle red dotsβ reveals that theyβre surprisingly abundant in the early universe.
The post Mysterious βLittle Red Dotsβ Give Clues to Early Black Holesβ Formation appeared first on Sky & Telescope.
AstroNexus
17 Jan, 13:16
Astronomy & Observing News β Sky & Telescope
This Week's Sky at a Glance, January 17 β 26
Brilliant Mars, just past opposition, far outshines its neighbors Pollux and Castor. Venus and Saturn pull apart in the southwest this week. Orion dominates the high southeast after dinnertime. Searing-white Sirius sparkles below it.
The post This Week's Sky at a Glance, January 17 β 26 appeared first on Sky & Telescope.
This Week's Sky at a Glance, January 17 β 26
Brilliant Mars, just past opposition, far outshines its neighbors Pollux and Castor. Venus and Saturn pull apart in the southwest this week. Orion dominates the high southeast after dinnertime. Searing-white Sirius sparkles below it.
The post This Week's Sky at a Glance, January 17 β 26 appeared first on Sky & Telescope.
AstroNexus
17 Jan, 07:20
APOD: 2025 January 16 - M83: The Southern Pinwheel
Beautiful and bright
https://apod.nasa.gov/apod/ap250116.html
Beautiful and bright
https://apod.nasa.gov/apod/ap250116.html
AstroNexus
16 Jan, 18:04
Astronomy Picture of the Day RSS Feed
M83: The Southern Pinwheel
https://apod.nasa.gov/apod/image/2501/noirlab2429a_1024.jpg M83: The Southern Pinwheel
Beautiful and bright spiral galaxy M83
lies a some twelve million light-years away, near the southeastern
tip of the very long constellation Hydra.
Prominent spiral arms traced by dark dust lanes and blue star
clusters lend this galaxy its popular name, The Southern Pinwheel.
Still, reddish star forming regions
that dot this cosmic pinwheel's spiral arms
have suggested another nickname, the Thousand-Ruby Galaxy.
A mere 40,000 light-years across, smaller than the Milky Way,
M83 is a member of a group of galaxies that includes active galaxy Centaurus A.
In fact, the core of M83 itself is bright at x-ray energies, showing a high
concentration of neutron stars and black holes left from
an intense burst of star formation. This sharp color image
also features spiky
foreground Milky Way stars and distant background
galaxies.
The image data was captured with the Dark Energy Camera
and Blanco 4-meter telescope at Cerro Tololo
Inter-American Observatory.
M83: The Southern Pinwheel
https://apod.nasa.gov/apod/image/2501/noirlab2429a_1024.jpg M83: The Southern Pinwheel
Beautiful and bright spiral galaxy M83
lies a some twelve million light-years away, near the southeastern
tip of the very long constellation Hydra.
Prominent spiral arms traced by dark dust lanes and blue star
clusters lend this galaxy its popular name, The Southern Pinwheel.
Still, reddish star forming regions
that dot this cosmic pinwheel's spiral arms
have suggested another nickname, the Thousand-Ruby Galaxy.
A mere 40,000 light-years across, smaller than the Milky Way,
M83 is a member of a group of galaxies that includes active galaxy Centaurus A.
In fact, the core of M83 itself is bright at x-ray energies, showing a high
concentration of neutron stars and black holes left from
an intense burst of star formation. This sharp color image
also features spiky
foreground Milky Way stars and distant background
galaxies.
The image data was captured with the Dark Energy Camera
and Blanco 4-meter telescope at Cerro Tololo
Inter-American Observatory.
AstroNexus
16 Jan, 17:16
Astronomy & Observing News β Sky & Telescope
Webb Telescope Watches Rippling Dust Shells
After more than a year in production, a new cosmic film, starring the massive star Wolf-Rayet 140, is out.
The post Webb Telescope Watches Rippling Dust Shells appeared first on Sky & Telescope.
Webb Telescope Watches Rippling Dust Shells
After more than a year in production, a new cosmic film, starring the massive star Wolf-Rayet 140, is out.
The post Webb Telescope Watches Rippling Dust Shells appeared first on Sky & Telescope.
AstroNexus
16 Jan, 07:14
APOD: 2025 January 15 β Wolf Moon Engulfs Mars
Does the Moon ever engulf Mars?
https://apod.nasa.gov/apod/ap250115.html
Does the Moon ever engulf Mars?
https://apod.nasa.gov/apod/ap250115.html
AstroNexus
16 Jan, 01:16
Astronomy & Observing News β Sky & Telescope
Celebrate Hubbleβs 35th Year with This Observing Challenge
Join NASA and the Astronomical League in a fun new observing challenge that celebrates Hubble's 35th anniversary.
The post Celebrate Hubbleβs 35th Year with This Observing Challenge appeared first on Sky & Telescope.
Celebrate Hubbleβs 35th Year with This Observing Challenge
Join NASA and the Astronomical League in a fun new observing challenge that celebrates Hubble's 35th anniversary.
The post Celebrate Hubbleβs 35th Year with This Observing Challenge appeared first on Sky & Telescope.
AstroNexus
15 Jan, 21:16
Astronomy & Observing News β Sky & Telescope
Blue Ghost Lunar Lander Heads to the Moon
The first two lunar missions of 2025 β Firefly's Blue Ghost and iSpace's second Hakuto R mission β are now headed to the Moon.
The post Blue Ghost Lunar Lander Heads to the Moon appeared first on Sky & Telescope.
Blue Ghost Lunar Lander Heads to the Moon
The first two lunar missions of 2025 β Firefly's Blue Ghost and iSpace's second Hakuto R mission β are now headed to the Moon.
The post Blue Ghost Lunar Lander Heads to the Moon appeared first on Sky & Telescope.
AstroNexus
15 Jan, 18:03
Astronomy Picture of the Day RSS Feed
APOD: 2025 January 15 β Wolf Moon Engulfs Mars
https://apod.nasa.gov/apod/image/2501/MoonMars_Sultan_960.jpg APOD: 2025 January 15 β Wolf Moon Engulfs Mars Does the Moon ever engulf Mars?
Yes, but only in the sense that it moves in front, which happens on rare occasions.
This happened just yesterday, though, as seen from some locations in North America and western Africa. This occultation was notable
not only because the Moon was a fully lit Wolf Moon, but because Mars was near its largest and brightest, moving to opposition -- the closest to the Earth in its orbit -- only tomorrow.
The engulfing, more formally called an occultation, typically lasting about an hour.
The featured image was taken from near Chicago, Illinois, USA just as Earth's largest satellite
was angularly moving away from the much more distant red planet.
Our Moon
occasionally moves in front of all of the Solar System's planets.
Given the temporary alignment of orbital planes, the next time our Moon eclipses Mars
will be a relatively soon February 9.
APOD: 2025 January 15 β Wolf Moon Engulfs Mars
https://apod.nasa.gov/apod/image/2501/MoonMars_Sultan_960.jpg APOD: 2025 January 15 β Wolf Moon Engulfs Mars Does the Moon ever engulf Mars?
Yes, but only in the sense that it moves in front, which happens on rare occasions.
This happened just yesterday, though, as seen from some locations in North America and western Africa. This occultation was notable
not only because the Moon was a fully lit Wolf Moon, but because Mars was near its largest and brightest, moving to opposition -- the closest to the Earth in its orbit -- only tomorrow.
The engulfing, more formally called an occultation, typically lasting about an hour.
The featured image was taken from near Chicago, Illinois, USA just as Earth's largest satellite
was angularly moving away from the much more distant red planet.
Our Moon
occasionally moves in front of all of the Solar System's planets.
Given the temporary alignment of orbital planes, the next time our Moon eclipses Mars
will be a relatively soon February 9.
AstroNexus
15 Jan, 17:16
Astronomy & Observing News β Sky & Telescope
Grab Your Binoculars for Comet ATLAS's Brief Sunset Show
Don't miss the opportunity to spot this horizon-skirting, binocular comet. It's a beauty.
The post Grab Your Binoculars for Comet ATLAS's Brief Sunset Show appeared first on Sky & Telescope.
Grab Your Binoculars for Comet ATLAS's Brief Sunset Show
Don't miss the opportunity to spot this horizon-skirting, binocular comet. It's a beauty.
The post Grab Your Binoculars for Comet ATLAS's Brief Sunset Show appeared first on Sky & Telescope.
AstroNexus
15 Jan, 17:16
Astronomy & Observing News β Sky & Telescope
Galaxy-mapping Satellite Ends Science Operations
After more than a decade in space, the European Gaia spacecraft will end its observations this week. Astronomers are still busy preparing final data blasts.
The post Galaxy-mapping Satellite Ends Science Operations appeared first on Sky & Telescope.
Galaxy-mapping Satellite Ends Science Operations
After more than a decade in space, the European Gaia spacecraft will end its observations this week. Astronomers are still busy preparing final data blasts.
The post Galaxy-mapping Satellite Ends Science Operations appeared first on Sky & Telescope.
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