Messier 27 - Dumbbell Nebula (Darius Kopriva)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: Dumbbell Nebula · HD345444 · HD345446 · HD345449 · HD345450 · HD345451 · HD345452 · HD345453 · HD345454 · HD345469 · M 27 · NGC 6853 · PK060-03.1

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Messier 27 - Dumbbell Nebula

Link: https://dako-astrophotography.com/Image/8oidhj

Powered byPixInsight

Messier 27 - Dumbbell Nebula

Link: https://dako-astrophotography.com/Image/8oidhj

Image processed using free competition data from Roboscopes. Entry is open to all, well worth checking out for anyone looking for dark sky data to hone their processing skills on.

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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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.

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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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Status	Advanced success
Started	...
Astrometry.net job	8583509
PixInsight job	BAJLCPONMQTV6Y0AK8IJY3AUR7UI2RX5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m35s.484
RA (top/left)	19h58m56s.550
RA (top/right)	19h58m54s.849
RA (bottom/right)	20h00m14s.793
RA (bottom/left)	20h00m16s.293

Dec (center)	+22°43′08″.30
Dec (top/left)	+22°57′22″.10
Dec (top/right)	+22°29′05″.64
Dec (bottom/right)	+22°28′53″.20
Dec (bottom/left)	+22°57′09″.53

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Messier 27 - Dumbbell Nebula

Messier 27 - Dumbbell Nebula

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Messier 27 - Dumbbell Nebula

Messier 27 - Dumbbell Nebula

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