NGC 2787 + IFN (Reg Pratt)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: HD80259 · HD80365 · HD80532 · HD81438 · NGC 2787

Image of the day 04/01/2024

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NGC 2787 + IFN

Image of the day 04/01/2024

Powered byPixInsight

NGC 2787 + IFN

NGC 2787 is barred lenticular galaxy, which is an intermediate type that sits between elliptical and spiral galaxies. While lenticular galaxies do have large-scale discs they lack spiral arms and because they have used up most of their interstellar matter, there is very little ongoing star formation. It sits about 24 million light-years from Earth in the constellation Ursa Major.

With an apparnet size of only 2 arcminutes, such a small object would typically be underwhelming in the 80 arcminute wide field of view of my telescope. Fortunately the N/NE sky is full of giant Inegrated Flux Nebulae (IFN). Consisting of dust particles, hydrogen and carbon monoxide, and other elements, these clouds exist outside of our galactic plane. Instead of being illuminated by a single star (as most nebulae in the galactic plane are) they are illuminated by the collective star light of our entire Milky Way galaxy. Due to being outside of the galactic plane, IFN are extremely dim and to bring them out one needs very dark sky and a lot of integration time. Fast optics aren't a bad idea either.

In addition to IFN there is also a surprising amount of interstellar hydrogen-alpha which is even dimmer than the IFN. There is even more in the field than what I chose to display but I kept the stretch relatively modest to preserve the quality of the image.

IOptron CEM
ZWO ASI2600MM Pro
Dark Nebula
Unique or Unusal Deep Sky Targets
Fast Newtonians

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Status	Advanced success
Started	...
Astrometry.net job	9480447
PixInsight job	M3C4FR1Q9ELJJX4MO8LTGY22EG4U01RT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h23m11s.646
RA (top/left)	09h30m18s.760
RA (top/right)	09h15m32s.373
RA (bottom/right)	09h16m21s.913
RA (bottom/left)	09h30m34s.327

Dec (center)	+69°06′25″.87
Dec (top/left)	+69°33′19″.18
Dec (top/right)	+69°28′46″.69
Dec (bottom/right)	+68°38′26″.27
Dec (bottom/left)	+68°42′52″.12

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Image of the day 04/01/2024

NGC 2787 + IFN

Image of the day 04/01/2024

NGC 2787 + IFN

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Image of the day 04/01/2024

NGC 2787 + IFN

Image of the day 04/01/2024

NGC 2787 + IFN

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