IC 1795 – The Fishhead Nebula

IC 1795

The Fishhead Nebula

To some, this nebula looks like a fishhead

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To some, this nebula looks like the head of a fish. However, this colorful cosmic portrait really features glowing gas and obscuring dust clouds in IC 1795, a star forming region in the northern constellation Cassiopeia. The nebula’s colors were created by adopting the Hubble false-color palette for mapping narrow emission from oxygen, hydrogen, and sulfur atoms to blue, green and red colors, and further blending the data with images of the region recorded through broadband filters. Not far on the sky from the famous Double Star Cluster in Perseus, IC 1795 is itself located next to IC 1805, the Heart Nebula, as part of a complex of star forming regions that lie at the edge of a large molecular cloud. Located just over 6,000 light-years away, the larger star forming complex sprawls along the Perseus spiral arm of our Milky Way Galaxy.

The Fishhead Nebula in Cassiopeia

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Technical card

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ObjectIC 1795
Imaging telescopeExplore Scientific ED 102 APO FCD1
Imaging cameraZWO ASI 1600MM PRO
Mount SkyWatcher HEQ5 Pro
GuidingGuidescope 240mm, ZWO ASI 120MM
FilterAstronomik H-Alpha 6nm 1.25″, Astronomik OIII 6nm 1,25″, Astronomik SII 6nm 1,25″
AccessoriesTS PHOTOLINE x0.80 Reducer/Korrektor
Integration27.4 hours, H-Alpha: 200×180″, OIII: 170×180″, SII: 179×180″
Dates of recording5 nights in October 2018
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