Nebulae - Event Horizon

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IC1805 - The Heart Nebula, narrowband version433 viewsNarrowband rendition of the Heart Nebula, using the IDAS NBZ nebula enhancement filter to capture the H-alpha and O-III emissions; Fish Head Nebula seen as extension of Heart at lower left.Nov 13, 2022

IC405 - The Flaming Star Nebula in Auriga450 viewsNarrowband view of an emission and reflection nebula in the constellation Auriga north of the celestial equator, surrounding the bluish, irregular variable star AE Aurigae. About 1500 light-years away.Nov 13, 2022

NGC1499 - The California Nebula, narrowband version 419 viewsA more conventional narrowband rendition of the California Nebula, mapping H-alpha to gold and O-III to blueNov 13, 2022

NGC1499 - The California Nebula, narrowband version448 viewsThis bizarre rendition of the California Nebula was the result of an unrepeatable experiment in mapping H-alpha and O-III to various channels in a mad orgy of improvisation. Nov 13, 2022

M20 - The Trifid Nebula432 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.Nov 13, 2022

M1 - The Crab Nebula, narrowband version436 viewsA Hubble palette rendition of the remnant of the supernova seen by Chinese astronomers in 1054 CE.Nov 13, 2022

NGC6302 - The Bug Nebula449 viewsA bipolar planetary nebula in the constellation Scorpius. Also known as the Butterfly Nebula, but a larger telescope than the 5" refractor used to capture this image is needed to show the pattern clearly; it shows up well in Hubble images. In this image, the nebula looks more like a bug squashed on a car windshield.Aug 07, 2022

NGC 6888 - The Crescent Nebula503 viewsAn emission nebula in the constellation Cygnus, about 5000 light-years away from Earth; formed by the fast stellar wind from the Wolf-Rayet star WR 136 colliding with and energizing slower-moving matter ejected by the star when it became a red giant around 250,000 to 400,000 years ago.Aug 07, 2022

NGC7000 - The North American Nebula472 viewsNarrowband image of an H-II emission nebula in the constellation Cygnus; only part of the nebula is visible since it is too large to fit entirely in the field of view of the telescope. 2,590 light-years distant and 90 light-years across.Aug 05, 2022

M97 - The Owl Nebula450 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.Aug 04, 2022

NGC 6992 - Eastern Veil Nebula433 viewsAlong with NGC 6960 and other objects, the Eastern Veil is a component of the Veil Nebula in the constellation Cygnus. It is a cloud of hot, ionized gas composed of oxygen, sulfur and hydrogen.Aug 04, 2022

M78 - Reflection Nebula in Orion450 viewsM78 - Reflection Nebula in the Orion B molecular cloud complex, 1,350 light-years from Earth.Aug 03, 2022

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