NGC281 (Joe Matthews)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 24 Cas) · 24 eta Cas · Achird · HD232283 · HD232313 · HD236521 · HD236526 · HD236571 · HD236589 · HD4266 · HD4614 · HD4647 · HD5005 · HD5032 · HD5343 · HD5396 · HD5430 · HD5553 · IC 1590 · LBN 607 · LBN 610 · LBN 611 · LBN 615 · LBN 616 · LBN 621 · NGC 281 · Sh2-184 · The star Achird (η Cas

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NGC281

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NGC281

NGC 281 is an H II region in the constellation Cassiopeia, nicknamed the "Pacman Nebula" for its resemblance to the video game character. NGC 281 was discovered in August 1883 by E. E. Barnard, who described it as "a large faint nebula, very diffuse."
The Pacman nebula lies about 10,000 light years distant, in the Perseus spiral arm of our galaxy. It is a busy workshop of star formation. Prominent features, besides its diffusely glowing hydrogen gas, include dark lanes of obscuring dust and dense knots of gas and dust - Bok Globules - in which stars may currently be forming. NGC 281 also includes the open cluster IC 1590, of which the multiple star HD 5005 is the brightest member. Its light helps ionize the nebula's gas, causing the red glow visible throughout.

This imaging session was the first time I used guiding. i would have had more exposures but the clouds started rolling in at exposure 70. I just downloaded Pixinsight and am learning how to use the application and plan to modify my current stacked image of the pac-man nebula with it,

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Status	Advanced success
Started	...
Astrometry.net job	6339316
PixInsight job	M0H1BRPBBFZHPHYK7FF8QSYYPDL8ESPQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h52m24s.40
RA (top/left)	00h43m45s.12
RA (top/right)	00h46m43s.79
RA (bottom/right)	01h00m25s.90
RA (bottom/left)	00h58m34s.30

Dec (center)	+56°35′07″.0
Dec (top/left)	+57°55′06″.3
Dec (top/right)	+54°59′57″.6
Dec (bottom/right)	+55°12′43″.4
Dec (bottom/left)	+58°09′05″.6

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NGC281

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