Dumbbell Nebula - Messier 27 (Rikesh Patel)

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

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Dumbbell Nebula - Messier 27

Link to TIFF/FITS: https://www.flickr.com/photos/189414873@N06/51782864623/in/dateposted/

Powered byPixInsight

Dumbbell Nebula - Messier 27

Link to TIFF/FITS: https://www.flickr.com/photos/189414873@N06/51782864623/in/dateposted/

Equipment:

Skywatcher HEQ5-pro (Rowan Belt Mod)
ZWO ASI 294MC-pro
Explore Scientific ED APO 102mm F7 FCD-100 Triplet Carbon Fibre
Hotech SCA 1x field flattener
ZWO ASI-120MM-mini guide camera
Skywatcher Evoguide 50ED guidescope
2 inch mounted Optolong L-eXtreme

Acquisition:

Sharpcap polar alignment, ASCOM guiding/dithering with PHD2
APT image acquisition
Lights – 57 x 300s at -10c, gain 200, offset 30 (total integration 285 minutes)
Darks – 30
Flats – 30
Dark flats - 30

Procesing:

Images calibrated and stacked in APP using Ha and Oiii extract algorithms
Autostretched images saved as 16 bit TIFF
In photoshop a) StarXterminator on both ha and oiii images b) Topaz Denoise Ai c) HDR processing - select colour range tool to create a layer mask of the overexposed core, curves adjustment to improve core detail. Layer mask to selectively stretch for the outer faint shells. b) high pass filtering to nebula to selectively increase contrast c) further denoise d) combine ha and oiii processed images e) add stars back in using layer mask d) colour balance adjustment and saturation boost using ACR and colour mixer e) star minimisation using minimum filter f) very very heavy crop

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	Advanced success
Started	...
Astrometry.net job	5349730
PixInsight job	KKG2MXJFNDOTEWMXBJQNTGVW1N7UQV9N
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h59m36s.52
RA (top/left)	19h58m56s.44
RA (top/right)	20h00m32s.42
RA (bottom/right)	20h00m16s.66
RA (bottom/left)	19h58m40s.62

Dec (center)	+22°43′29″.6
Dec (top/left)	+22°32′45″.7
Dec (top/right)	+22°37′36″.7
Dec (bottom/right)	+22°54′13″.9
Dec (bottom/left)	+22°49′21″.2

Image Index:

Contribution Index (beta):

Dumbbell Nebula - Messier 27

Dumbbell Nebula - Messier 27

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Dumbbell Nebula - Messier 27

Dumbbell Nebula - Messier 27

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