NGC1491 - Fossil Footprint Nebula (Michael J. Mangieri)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: NGC 1491

NGC1491 - Fossil Footprint Nebula, Michael J. Mangieri

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NGC1491 - Fossil Footprint Nebula

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NGC1491 - Fossil Footprint Nebula

NGC 1491, also known as the Fossil Footprint Nebula (and other designations: SH2-206 and LBN 70), is an emission type bright nebula located approximately 10,700 light years away from Earth in the constellation of Perseus. Hot stars ionize the surrounding gas, causing it to glow in visible light. These stars, such as the blue 11.22 magnitude star BD+50 866, emit copious amounts of ultraviolet radiation, which ionizes the hydrogen gas forming the nebula. This hot star is also creating a bubble in the gas that immediately surrounds it.

Image acquired over a six night period November 3 through November 8, 2023. Processed in the standard Hubble Palette with RGB stars added in. Longer sub exposure times would probably have brought in more of the subtle O3 and S2 signal, so this is definitely a subject for another try in the future. The image here is a 50% crop of the nebula while the revision shows a wider field where the extra integration time would most likely show much more of the gas cloud.

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Title: Wider (original) field

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QHY268M/ZWO2600M Images
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Astrometry.net job	9366163
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NGC1491 - Fossil Footprint Nebula

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