SH2-274 The Medusa Nebula (A Planetary with a surface brightness ranging +15.9 to +25) (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Gemini (Gem) · Contains: HD59152 · HD59309 · NGC 2395 · PK205+14.1 · Sh2-274

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SH2-274 The Medusa Nebula (A Planetary with a surface brightness ranging +15.9 to +25)

Powered byPixInsight

SH2-274 The Medusa Nebula (A Planetary with a surface brightness ranging +15.9 to +25)

The Medusa Nebula is a planetary nebula in the constellation of Gemini. It is also known as Abell 21
and Sharpless 2-274. It was originally discovered in 1955 by University of California, Los Angeles
astronomer George O. Abell, who classified it as an old planetary nebula. It has a radius of 4 ly
at a distance of 1500 ly and has an apparent dia meter of 10 x 10 "

Information Credits: Wikipedia

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 ZWOASI2600MC-Pro Temp -10C, Binning 1 x 1, Gain 100 Offset 50
ZWO EFW

60 X 90 Second Exposures W/Optolong IR/UV Filter
84 X 300 Second Exposures W/Optolong L-Ultimate (3nm) Filter

20 Dark Frames/50 Flats
Total Integration Time: 8 Hours 30 Minutes
Acquisition with SharpCap
Stacked with Deep Sky Stacker
Guiding PHD2
Processed with Astra Image/GIMP
Photo taken from Seven Lakes, NC Bortle 4.5

North Carolina Astronomers
SharpCap Users
ZWO ASI 2600MC PRO
AstroBin Platform open discussions community forum

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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	7390359
PixInsight job	5BEZSDV64G0P1N279TGGZ014NDDBHEY1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h28m54s.40
RA (top/left)	07h30m55s.88
RA (top/right)	07h30m50s.86
RA (bottom/right)	07h26m52s.60
RA (bottom/left)	07h26m58s.58

Dec (center)	+13°14′50″.6
Dec (top/left)	+12°45′31″.0
Dec (top/right)	+13°45′24″.2
Dec (bottom/right)	+13°44′05″.8
Dec (bottom/left)	+12°44′14″.8

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SH2-274 The Medusa Nebula (A Planetary with a surface brightness ranging +15.9 to +25)

SH2-274 The Medusa Nebula (A Planetary with a surface brightness ranging +15.9 to +25)

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SH2-274 The Medusa Nebula (A Planetary with a surface brightness ranging +15.9 to +25)

SH2-274 The Medusa Nebula (A Planetary with a surface brightness ranging +15.9 to +25)

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