M 38 with The Spider and Fly (James E.)

Celestial hemisphere: Northern · Constellation: Auriga (Aur) · Contains: 24 phi Aur · IC 417 · LBN 794 · LBN 804 · LBN 810 · LDN 1526 · M 38 · NGC 1907 · NGC 1912 · NGC 1931 · PK172+00.1 · Sh2-234 · Sh2-237 · The star φAur

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M 38 with The Spider and Fly

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M 38 with The Spider and Fly

There's a wide range of targets that lie within this image of central Auriga. The open cluster M38 at a distance of 3500 light years contains a prominent yellow giant with an apparent magnitude of +7.9. This corresponds to an absolute magnitude of -1.5 or a luminosity of about 900 Suns. The smaller open cluster NGC 1907 is in close proximity astronomically but is likely only passing by M38 as the two originate from different parts of our galaxy. To the left of M38 is Abell 9 (PK172+00.1) which is only 40" in diameter and is a probable planetary nebula.

The spider, IC417, part of "the Spider and the Fly" nebulae is an emission and star forming nebula about 10000 light years away. The Fly, NGC 1931, at 7000 light years distant, is a mixed emission-reflection nebula with similar characteristics as the Orion Nebula. It contains a smaller version of the Trapezium at the center. Above and to the right of the Spider is S Aurigae which is a red carbon star.

Ha and SII were the brighter images. There is very little signal in OIII except around the Spider and Abell 9 with a fainter signal around the Fly.

Imaged over several nights: Nov 23-24; Dec 1, 5, 7, and 9, 2021.

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Description: Color revision - less red

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Status	Advanced success
Started	...
Astrometry.net job	5364222
PixInsight job	IQ3LSG4G0EJ6NG5QX4AZ90VLCY0MYPUD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h28m43s.66
RA (top/left)	05h24m39s.10
RA (top/right)	05h24m35s.29
RA (bottom/right)	05h32m40s.89
RA (bottom/left)	05h32m59s.99

Dec (center)	+35°01′18″.7
Dec (top/left)	+36°16′43″.0
Dec (top/right)	+33°46′52″.1
Dec (bottom/right)	+33°45′19″.6
Dec (bottom/left)	+36°15′08″.1

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M 38 with The Spider and Fly

M 38 with The Spider and Fly

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M 38 with The Spider and Fly

M 38 with The Spider and Fly

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