M27 (Dumbbell Nebula) [NB HOO] (Dean Carr)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: 14 Vul · Dumbbell Nebula · HD189733 · HD345312 · HD345313 · HD345314 · HD345316 · HD345317 · HD345322 · HD345323 · HD345435 · HD345436 · HD345438 · HD345439 · HD345440 · HD345443 · HD345444 · HD345445 · HD345446 · HD345447 · HD345448 · HD345449 · HD345450 · HD345451 · HD345452 · HD345453 · HD345454 · HD345455 · HD345456 · HD345457 · And 19 more.

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M27 (Dumbbell Nebula) [NB HOO]

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M27 (Dumbbell Nebula) [NB HOO]

M27, commonly known as the Dumbbell Nebula, is a planetary nebula approximately 1,360 light-years from Earth in the constellation of Vulpecula. The core is very bright and spheroidal in shape; it is surrounded by an extended region of comparatively dim nebulosity (both Ha and OIII).

This narrowband image was processed in PixInsight using a HOO two-color palette (Red = Ha, Green/Blue blend = OIII).

M27 was a rather challenging object to image at my observing location; it rises only to a maximum of 34 degrees above the horizon at the meridian, so obviously it is lower the rest of the time. Given that the walls of my observing tent do not allow me to go that low, I had to partially deconstruct the front end of the tent (i.e. lower some poles), making it quite unstable in the wind. Quite exciting to watch the walls of the tent flap across the mount. So, all-in-all, I am happy to get something out of my time chasing this target.

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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	Advanced success
Started	...
Astrometry.net job	6181145
PixInsight job	LGU4C5BNEXMOQXF2KRQ8OBETFPI9FZ1X
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m37s.416
RA (top/left)	20h02m03s.200
RA (top/right)	19h57m11s.898
RA (bottom/right)	19h57m12s.509
RA (bottom/left)	20h02m01s.943

Dec (center)	+22°43′21″.28
Dec (top/left)	+23°08′18″.64
Dec (top/right)	+23°08′21″.14
Dec (bottom/right)	+22°18′15″.29
Dec (bottom/left)	+22°18′14″.27

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M27 (Dumbbell Nebula) [NB HOO]

M27 (Dumbbell Nebula) [NB HOO]

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Image Index:

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M27 (Dumbbell Nebula) [NB HOO]

M27 (Dumbbell Nebula) [NB HOO]

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