M 27 The Dumbbell Nebula (Dale A Chamberlain)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · M 27 · NGC 6853 · PK060-03.1

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M 27 The Dumbbell Nebula

Link: https://chamberlainobservatory.com/index.php/welcome-to-the-chamberlain-observatory-website/photo-gallery/m27-the-dumbbell-nebula-2/

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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M 27 The Dumbbell Nebula

Link: https://chamberlainobservatory.com/index.php/welcome-to-the-chamberlain-observatory-website/photo-gallery/m27-the-dumbbell-nebula-2/

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

The Dumbbell Nebula (also known as Apple Core Nebula, Messier 27, M 27, or NGC 6853) is a planetary nebula in the constellation Vulpecula, at about 1227 light-years. This object was the first planetary nebula to be discovered; by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and its diameter of about 8 arcminutes, it is easily visible in binoculars and a popular observing target in amateur telescopes.

Like many nearby planetary nebulae, the Dumbbell contains knots. Its central region is marked by a pattern of dark and bright cusped knots and their associated dark tails (see picture). The knots vary in appearance from symmetric objects with tails to rather irregular tail-less objects. Similarly, to the Helix Nebula and the Eskimo Nebula, the heads of the knots have bright cusps which are local photoionization fronts.

This is an object I have taken many times and each time I hope to improve on the previous. This time I used the Optolong L-eNhance filter with my OSC camera and increased the number of subframes and exposure time.

Cloudy Nights
Optolong L-eNhance filter
Central USA
Cooled Color Cams
The OSC Club (One Shot Camera)
Ritchey Chretien telescopes GSO Family

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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Unknown

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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	3614550
PixInsight job	M777UXZU4ZR5PK7WM0I4L7J9LQ9D9FJF
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	19h59m37s.464
RA (top/left)	20h00m28s.996
RA (top/right)	19h58m30s.380
RA (bottom/right)	19h58m46s.980
RA (bottom/left)	20h00m44s.576

Dec (center)	+22°43′05″.85
Dec (top/left)	+22°54′58″.46
Dec (top/right)	+22°49′29″.84
Dec (bottom/right)	+22°31′11″.44
Dec (bottom/left)	+22°36′42″.35

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M 27 The Dumbbell Nebula

M 27 The Dumbbell Nebula

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M 27 The Dumbbell Nebula

M 27 The Dumbbell Nebula

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