NGC 1579 - The Northern Trifid (Andrew Barton)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: NGC 1579 · Sh2-222

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NGC 1579 - The Northern Trifid

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NGC 1579 - The Northern Trifid

The 2012 APOD of the Northern Trifid by Adam Block describes this region as a reflection nebula and not an emission nebula like the southern Trifid. The light from a massive young star is scattered thus the reddish color. Other descriptions of the Northern Triffid, including Wikipedia, call this area an HII region (emission). I am not sure which description is correct. Let me know if you have a good online source for the technical details of astronomical objects. I could certainly use a better reference.

I acquired the first data for this image using 120 second subs. But once I started putting it together, I realized I didn't go deep enough as I was just starting to make out the dark dust lanes but they looked mottled. The conditions were decent for the new moon so I acquired a new set of 300 sec subs over 3 evenings. I tried combining the 120 second subs with the 300 second subs, but the combination although less noisy looked washed out. In the end I threw out the 120 sec subs to produce this image.

Acquisition Details:

Dates 11/13/2020 through 11/15/2020

Gain 75, temp -20C

Red: 109 x 300 sec

Green: 110 x 300 sec

Blue: 150 x 300 sec

Arizona Astrophotographers
ZWO ASI1600MM/QHY163M

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Status	Advanced success
Started	...
Astrometry.net job	4028421
PixInsight job	NIBDJK8SFG1IKNS0ZE9U8XRQ5LGFI1DT
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	04h30m08s.625
RA (top/left)	04h28m30s.668
RA (top/right)	04h28m30s.109
RA (bottom/right)	04h31m45s.692
RA (bottom/left)	04h31m48s.326

Dec (center)	+35°17′36″.56
Dec (top/left)	+35°41′12″.96
Dec (top/right)	+34°54′10″.85
Dec (bottom/right)	+34°53′55″.14
Dec (bottom/left)	+35°40′56″.86

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NGC 1579 - The Northern Trifid

NGC 1579 - The Northern Trifid

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Image Index:

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NGC 1579 - The Northern Trifid

NGC 1579 - The Northern Trifid

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Description

Comments

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In these public groups

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