Event Horizon - Astronomical and Terrestrial Images

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Sh2-290_20250323_FLT132_ASI1600_RGB2.JPG
Sh2-290 - Planetary Nebula in Cancer215 viewsAlso known as Abell 31 and PK 219+31.1. Ancient planetary nebula, about 2000 light-years away, one of the largest in the sky but very dim.Jul 10, 2025
Sh311_LRGBH_20250222_FLT132_ASI1600MM_v2.JPG
Sh2-311 - Emission nebula in Puppis147 viewsSharpless 311 (Sh2-311, NGC 2467, Gum 9, LBN 1065 + 1067) is a bright nebula located approximately 20,500 light-years away in the constellation Puppis.Jul 10, 2025
Sh2-313-20250421-FLT132-2600MM-RGB1.JPG
Sharpless2-313 - Planetary Nebula in Hydra188 viewsAbout 400 light-years away. Also known as Abell 35 or PN G303.6+40.0.Jul 10, 2025
Sh2-180_20241004_RASA11_ASI2600_NBZ1.JPG
Sharpless2-180231 viewsDiffuse emission nebula in Cassiopeia, quite dimJul 10, 2025
NGC2359_20250105_RASA11_ASI2600_OLQ3c.JPG
NGC2359 - Thor's Helmet190 viewsAn emission nebula in the constellation Canis Major. About 12,000 light-years distant and 30 light-years in size. Associated with the Wolf-Rayet star WR7.Jul 10, 2025
M74_20241122_RASA11_ASI2600MC_OLQ2.JPG
M74, Spiral Galaxy in Pisces251 viewsGrand design spiral galaxy with two clearly defined spiral arms winding counterclockwise from center. About 32 million light-years distant.Jul 10, 2025
M67_20250324_FLT132_ASI1600_LRGB_v1.JPG
Messier 67 - Open cluster in Cancer203 viewsSometimes called King Cobra or Golden Eye Cluster. Distance 2600-2900 light-years. Estimated age 3.2 to 5 billion years.Jul 10, 2025
M44_20250220_RASA11_ASI2600MC_v2.JPG
M44 - The Beehive Cluster222 viewsOpen cluster in the constellation Cancer. Around 600 light-years distant and 600 million years old.Jul 10, 2025
M41_20250220_RASA11_ASI2600_v2.JPG
M41 - Little Beehive Cluster210 viewsOpen cluster in Canis Major, 2360 light-years from Earth.Jul 10, 2025
M20-SHO-20250624-FLT132-ASI1600-v2.JPG
M20 - the Trifid Nebula (narrowband)244 viewsAn emission/reflection nebula in Sagittarius. About 4100 light-years from Earth.Jul 10, 2025
M17-SHO-20250626-FLT132-ASI1600-v2.JPG
M17, the Swan Nebula (nasrrowband)236 viewsAlso known as Omega. Checkmark, Lobster and Horseshoe Nebula. 5,000 to 6,000 light-years away and 15 light-years across. Prolific star-forming region.Jul 10, 2025
M14_20250605_RGB_FLT132_2600MM_V1.JPG
M14 - Globular cluster in Ophiuchus245 viewsAlso known as NGC 6402. 30,000 light-years distant. Contains several hundred thousand stars.Jul 10, 2025
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