M27 - Dumbbell Nebula (Darius Kopriva)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: 14 Vul · Dumbbell Nebula · HD189733 · HD345305 · HD345313 · HD345316 · HD345317 · HD345323 · HD345343 · HD345426 · HD345427 · HD345430 · HD345431 · HD345433 · HD345436 · HD345437 · HD345438 · HD345439 · HD345440 · HD345443 · HD345444 · HD345445 · HD345446 · HD345447 · HD345448 · HD345449 · HD345450 · HD345451 · HD345452 · HD345453 · And 31 more.

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M27 - Dumbbell Nebula

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M27 - Dumbbell Nebula

The Dumbbell Nebula (also known as the Apple Core Nebula, Messier 27, and NGC 6853) is a planetary nebula (nebulosity surrounding a white dwarf) in the constellation Vulpecula, at a distance of about 1360 light-years. It was the first such nebula to be discovered, by Charles Messier in 1764. At its brightness of visual magnitude 7.5 and diameter of about 8 arcminutes, it is easily visible in binoculars and is a popular observing target in amateur telescopes.

The Dumbbell Nebula appears shaped like a prolate spheroid and is viewed from our perspective along the plane of its equator. In 1992, Moreno-Corral et al. computed that its rate of expansion angularly was, viewed from our distance, no more than 2.3 arcseconds (″) per century. From this, an upper limit to the age of 14,600 years may be determined. In 1970, Bohuski, Smith, and Weedman found an expansion velocity of 31 km/s. Given its semi-minor axis radius of 1.01 ly, this implies that the kinematic age of the nebula is 9,800 years.

Southern Hemisphere Astro

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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.
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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	6456327
PixInsight job	NZDDO9IOOURKJLOFURC016J17CPHLEUH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m39s.53
RA (top/left)	19h57m53s.69
RA (top/right)	19h57m54s.71
RA (bottom/right)	20h01m24s.56
RA (bottom/left)	20h01m25s.57

Dec (center)	+22°42′02″.5
Dec (top/left)	+23°18′37″.3
Dec (top/right)	+22°05′19″.5
Dec (bottom/right)	+22°05′17″.7
Dec (bottom/left)	+23°18′36″.7

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M27 - Dumbbell Nebula

M27 - Dumbbell Nebula

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M27 - Dumbbell Nebula

M27 - Dumbbell Nebula

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