NGC-4236 in Draco part of the M81 Group of Galaxies (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: NGC 4236

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NGC-4236 in Draco part of the M81 Group of Galaxies

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NGC-4236 in Draco part of the M81 Group of Galaxies

NGC 4236 is a tenth magnitude barred spiral galaxy in Draco that's visible through small telescopes although best seen with larger instruments. This galaxy was discovered by German born British astronomer William Herschel on April 6, 1793 and is a member of the Ursa Major or M81 group of galaxies that contains at least 34 galaxies, it is 11.7 million light-years away, 75,000 light-years in diameter and contains more than 100 billion stars.
NGC-4236 has a large apparent size from Earth 22 X 7 arc min.

Information Credits: freestarcharts.com

Telescope: Explorer Scientific 127mm CF APO Refractor f/7.5 (952mm Focal Length)
Explore Scientific X0.7 Reducer f/5.25 (667mm Focal Length)
Mount IOptron CEM40
Camera ZWOASI6200MC-Pro Temp -10C, Binning 1 x 1, Gain 100 Offset 50
ZWO EFW

61 X 180 Second Exposures W/Optolong L-Pro Filter 5/9/2022 Moon at 56% and 66&
28 X 120 Second Exposures W/Optolong L-Pro Filter 5/10 no Moon
35 X 300 Second Exposures W/Optolong L-Pro Filter 5/17 ,5/18 no Moon
20 Dark Frames 30 Flat Frames
Total Integration Time: 7 Hours 4 Minutes

Acquisition with SharpCap
Stacked with Astro Pixel Processor
Stacked with Deep Sky Stacker
Guiding PHD2
Processed with Astra Image
Photo taken from Seven Lakes, NC Bortle 4.5

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Status	Advanced success
Started	...
Astrometry.net job	5780935
PixInsight job	ZJIK1WPXSUN49TAXE6X1XJ4HZ6HXHC1S
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h16m37s.87
RA (top/left)	12h19m55s.79
RA (top/right)	12h20m26s.26
RA (bottom/right)	12h13m11s.40
RA (bottom/left)	12h12m58s.90

Dec (center)	+69°26′54″.2
Dec (top/left)	+68°59′12″.7
Dec (top/right)	+69°53′04″.1
Dec (bottom/right)	+69°54′21″.5
Dec (bottom/left)	+69°00′28″.2

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NGC-4236 in Draco part of the M81 Group of Galaxies

NGC-4236 in Draco part of the M81 Group of Galaxies

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NGC-4236 in Draco part of the M81 Group of Galaxies

NGC-4236 in Draco part of the M81 Group of Galaxies

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