Event Horizon - Astronomical and Terrestrial Images

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NGC6543_20240608_RASA11_NBZ_v4.JPG
NGC6543, the Cat's Eye Nebula735 viewsPlanetary nebula in the northern constellation Draco. Distance from Earth about 3300 light-years.
AnnularEclipse20231014_v2.jpg
The annular solar eclipse of October 14, 2023 - Montage of 24 images734 viewsA montage illustrating the progress of the annular eclipse of October 14, 2023, as seen from Bryce Point, Bryce Canyon, Utah, from immediately prior to first contact to immediately after fourth contact
M97_20210305_LRGB2.jpg
M97 - The Owl Nebula733 viewsPlanetary nebula in the constellation Ursa Major, 2030 light-years distance from Earth and about 8000 years old. The blurred appearance results from the fact that it consists of several overlapping shells of gas. The shells are not entirely concentric, but form a barrel-like structure which gives rise to the owl-like appearance.
M101-20230522-v1c.jpg
M101 with Supernova733 viewsMessier 101, Spiral Galaxy in Ursa Major, with Supernova SN 2023ixf
NGC5139_20080503-1.jpg
NGC 5139 - Omega Centauri Cluster732 viewsGlobular cluster in Centaurus, 17,090 light-years away. The largest-known globular cluster in the Milky Way, estimated to contain approximately 10 million stars, and a total mass equivalent to 4 million solar masses.
NGC7380-20230715_OSC3.jpg
NGC7380 - The Wizard Nebula732 viewsOpen cluster with surrounding nebulosity in Cepheus, about 8500 light-years away.
NGC3115_20220323_LRGB1~0.jpg
NGC 3115 - Lenticular Galaxy in Sextans730 viewsFormerly thought to be an elliptical galaxy, now considered a lenticular (lens-shaped) galaxy because it has a disk and a central bulge of stars, but no discernible spiral structure. Distance from Earth is about 32 million light years. It is several times larger than the Milky Way galaxy.
M51_20240511_RASA11_ASI2600_LPQ3.JPG
M51 - The Whirlpool Galaxy730 viewsLocated 31 million light-years away in the constellation Canes Venatici. The small galaxy at the tip of one of M51's spiral arms is NGC 5195; it is passing behind M51.
SolarEclipse-20170821-3723.jpg
One minute after Third Contact729 viewsC3 + 1 min
NG457-_20150822.jpg
NGC 457 - The Owl Cluster726 viewsAn open star cluster in the constellation Cassiopeia, about 7,900 light-years distance from our Solar System. The "eyes" are the magnitude 5 star Phi-1 Cassiopeiae and magnitude 7 Phi-2 Cassiopeiae.
M78_20161203_LRGB3.jpg
M78 - Reflection Nebula in Orion726 viewsM78 - Reflection Nebula in the Orion B molecular cloud complex, 1,350 light-years from Earth.
SolarEclipse-20170821-3681.jpg
Totality minus 1 minute725 viewsC2 - 1 min 16 sec
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