M27 : the Dumbbell Nebula (NGC 68539 (maragus)

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

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M27 : the Dumbbell Nebula (NGC 68539

The Dumbbell Nebula is a planetary nebula in the constellation Vulpecula.
The Nebula is a result of an old start that has shed (get rid of) its outer layers in a glowing display of color. It is therefore surrounding a white dwarf, whose radius is among the largest known for a white dwarf.
M27 hosts many knots of gas and dust. Their sizes typically range from 17 billion to 56 billion kilometers, which is several times larger than the distance from the sun to Pluto.
Each contains as much mass as three Earths!
These dense knots of gas and dust seem to be a natural part of the evolution of planetary nebulas. They form when the stellar winds are not powerful enough to blow away a larger clump of matter but are able to blow away smaller particles, creating a trail behind the clump. the shapes of these knots change as the nebula expands.

It appears shaped like a prolate spheroid and it is views along the plane of its equator.

It was spotted by Messier in 1764, it was the first planetary nebulas ever discovered.

Apparent magnitude : 7.5

Apparent dimensions : 8.0'x 5.6'

Radius : 1,44 (+0.21 -0.16) ly

Distance : 1360 ly from Earth

RA : 19h 59m 36.34s

Dec : +22° 43' 16.09''

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
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	Basic success
Started	...
Astrometry.net job	4920870
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M27 : the Dumbbell Nebula (NGC 68539

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M27 : the Dumbbell Nebula (NGC 68539

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