M27 (Jeff Marston)

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

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M27

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M27

I have been wanting to get a better image of M27 for a few years. It isn’t a particularly difficult target to image but like everything else in this hobby It isn’t easy to get a great image of it either. I went to my favorite dark site which is about an hour southeast from where I live. The site is a plateau sitting at nearly 10,000 feet and is probably a Bortle 2 area with a tiny by of sky glow to the west.

I usually image with a 140 f/6.5 refractor but I wanted a larger image and perhaps a bit more detail on this target, so I used my C11. I took 32 images. Most were 210 second exposures and a few were 240 second images. Even though my PHD2 graph was showing between .6 and .7 RMS my images drifted in one direction over the two hours of imaging I did. The result was many of the smaller stars were oval, but I only found that out during post processing. I fixed it somewhat and the image really is better than any M27 photo I have produced so far so I thought I would share it.

This most recent version was improved by some help from my friend, James Pierce, who is a bit of a wizard with all things I T.

Original
B
C
Final
D

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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	Basic success
Started	...
Astrometry.net job	6058823
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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