Event Horizon - Astronomical and Terrestrial Images

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M100-20130511c.jpg
Messier 100 and companions11 viewsSpiral Galaxy in the constellation Coma Berenices. Surrounded by tiny satellite galaxies NGC 4323 and NGC 4328 (about 3 o'clock and 5:30). Larger spiral galaxy at top is NGC 4312.
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NGC 2903 - Spiral Galaxy in Leo11 viewsA barred spiral galaxy about 30 million light-years from Earth in the constellation Leo the Lion; a member of the Virgo supercluster.
M17-20160625.jpg
M17 - The Swan Nebula11 viewsIn the constellation Sagittarius. Also known as the Omega or Horseshoe Nebula. A prolific star-forming region, lying 5000-6000 years from Earth.
SolarEclipse-20021204-DX20.jpg
Maximum Totality11 viewsWith a glorious corona.
SolarEclipse-20060329-488.jpg
Pre-Totality 411 viewsAnd strange at Ecbatan the trees
Take leaf by leaf the evening strange
The flooding dark about their knees
The mountains over Persia change
Topkapi-20060331-0958.jpg
Treasury Fountain11 viewsOne of the most ornate and imposing fountains in the palace.
IC4592-BlueHorsehead-20210605.jpg
IC4592 - Blue Horsehead Nebula 11 viewsReflection nebula in the constellation Scorpius, lit by the giant septuple star Jabbah (Nu Scorpii). This photo shows only part of the nebula, so the horsehead shape is not evident here.
IC4603-20210529.jpg
IC4603 - Core of the Rho Ophiuchi Complex11 viewsThis blue reflection nebula glows by the light of the 7.9 magnitude star SAO184376 in the center.
IC4604-20210605-LRGB1.jpg
IC 4604 - Rho Ophiuchi Nebula 11 viewsA blue reflection nebula in Ophiuchus, illuminated by three bright stars of which the central and brightest is Rho Ophiuchi. Lying along the border of Ophiuchus and Scorpius, this nebula and its neighbor IC4603 are close to the giant red star Antares.
NGC2237-20210205-LRGB-i3.jpg
NGC2237 - The Rosette Nebula11 viewsEmission Nebula / HII region in Monoceros, with open cluster NGC 2244 in center of nebula.
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M20 - The Trifid Nebula11 viewsA combination of an open cluster of stars, an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (which accounts for the gaps dividing the nebula into lobes). About 5000 light-years away in the constellation Sagittarius.
M31-20220920-OSC2.jpg
M31 - The Andromeda Galaxy11 viewsA wide-field view of the Andromeda Galaxy, 2.5 million light years away and 152,000 light years in diameter. Satellite galaxies M32 (above right of center, on rim of M31) and M110 (bottom center) also appear in the frame. Red swath at left was caused by a reflection of the red power-on light on the ZWO ASI2600MC camera, which sits in front of the telescope.
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