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1. Cas A
Cassiopeia A is the 320 year old remnant of a massive star that exploded.
Cassiopeia A Photo Page
Cassiopeia A is the 320 year old remnant of a massive star that exploded.
Cassiopeia A Photo Page
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2. 3C295
A large galaxy in the center of a cluster of galaxies located in the constellation Boötes.
3C295 Photo Page
A large galaxy in the center of a cluster of galaxies located in the constellation Boötes.
3C295 Photo Page
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3. Antennae
Colliding galaxies about 60 million light years from Earth located in the constellation Corvus.
Antennae Photo Page
Colliding galaxies about 60 million light years from Earth located in the constellation Corvus.
Antennae Photo Page
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5. Eta Carinae
A supermassive star and nebula that is one of the brightest infrared sources in the sky.
Eta Carinae Photo Page
A supermassive star and nebula that is one of the brightest infrared sources in the sky.
Eta Carinae Photo Page
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7. M82
The nearest starburst galaxy at a distance of 11 million light years from Earth.
M82 Photo Page
The nearest starburst galaxy at a distance of 11 million light years from Earth.
M82 Photo Page
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10. PKS0637
A luminous quasar in the constellation Mensa so distant that we see it as it was 6 billion years ago.
PKS0637 Photo Page
A luminous quasar in the constellation Mensa so distant that we see it as it was 6 billion years ago.
PKS0637 Photo Page
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11. PNE
A Planetary Nebula (so called because it looks like a planet when viewed with a small telescope).
PNE Photo Page
A Planetary Nebula (so called because it looks like a planet when viewed with a small telescope).
PNE Photo Page
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Revised: October 28, 2025