M57 13 lights at 10 minutes 400 ISO (Stephen Migol)

Celestial hemisphere: Northern · Constellation: Lyra (Lyr) · Contains: IC 1296 · M 57 · NGC 6720 · Ring Nebula

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M57 13 lights at 10 minutes 400 ISO

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M57 13 lights at 10 minutes 400 ISO

Used a cooled, full spectrum modified Pentax K10D camera with Baader Moon and Skyglow filter. Scope used was the Orion 127 Maksutov Cassegrain 1540mm fl F12.1.

Stacked using DSS 3.3.3 beta 45 with 29 temperature matched darks (although the darks used were not from the cooled camera - they were from previous work with the camera in the fridge). 12 extremely cold (-5c) darks used as bias to help control non-linear amp glow.

Processed with PI with DBE, masked stretch, and ACDNR. Used the annotation script as well. Exported to TIFF and then to LR3 to white balance and upload.

Taken in the backyard so the light pollution adds a lot of brown to the background.

Still, I'm rather happy with how this has turned out. Focus was not as good as it could be, also, I could see drift in DEC in the original source files.

Image Plate Solver script version 1.51

Referentiation Matrix (Gnomonic projection = Matrix * Coords[x,y]):

+0.000024478698 +0.000225114142 -0.221295011923

-0.000225153907 +0.000024424294 +0.311314360456

+0.000000000000 +0.000000000000 +1.000000000000

Resolution ........ 0.815 arcsec/pix

Rotation .......... -96.193 deg

Focal ............. 1366.25 mm

Pixel size ........ 5.40 um

Field of view ..... 40' 0.1" x 22' 21.9"

Image center ...... RA: 18 53 38.842 Dec: +32 52 32.44

Image bounds:

top-left ....... RA: 18 52 35.379 Dec: +33 11 12.19

top-right ...... RA: 18 52 56.364 Dec: +32 31 26.51

bottom-left .... RA: 18 54 21.658 Dec: +33 13 37.46

bottom-right ... RA: 18 54 41.860 Dec: +32 33 50.70

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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.

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.
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Status	Advanced success
Started	...
Astrometry.net job	6498881
PixInsight job	YISYE3OTHSDPYJMEP471Z1KWC0TX8CNZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h53m38s.807
RA (top/left)	18h52m35s.157
RA (top/right)	18h52m56s.375
RA (bottom/right)	18h54m41s.768
RA (bottom/left)	18h54m21s.565

Dec (center)	+32°52′33″.16
Dec (top/left)	+33°11′13″.13
Dec (top/right)	+32°31′27″.45
Dec (bottom/right)	+32°33′52″.52
Dec (bottom/left)	+33°13′42″.73

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M57 13 lights at 10 minutes 400 ISO

M57 13 lights at 10 minutes 400 ISO

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M57 13 lights at 10 minutes 400 ISO

M57 13 lights at 10 minutes 400 ISO

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