M13: Great Globular Cluster in Hercules (Arvind H.)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Great Cluster in Hercules · Hercules globular cluster · IC 4617 · M 13 · NGC 6205 · NGC 6207

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M13: Great Globular Cluster in Hercules

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M13: Great Globular Cluster in Hercules

I've always wanted to image a glob and what better to start with than M13, right?—at least from my northern latitude (37°). I wasn’t sure what changes to make with my usual processing steps but am pleased with the overall result: stars in the cluster and the colors.

I’ve read about the ‘propeller’ dark structure in M13. I’ve tried a few times finding it with my 10” Dob but could never confirm seeing it. I was hoping it would be obvious in my image and now concerned I’ve processed it out

. I note a structure akin to the Mercedes logo at ~ 6 o’clock about a third to half way from the center (to edge). Perhaps that's the one? Can someone confirm?

Feedback welcome. Thanks for looking.

Original
B
C
D
Final
E

B

Description: Played around a bit with background, contrast and sharpness.

Uploaded: ...

C

Description: less intense core

Uploaded: ...

D

Description: Cropped for close up.

Uploaded: ...

E

Description: with milder stretch applied in processing.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	2969744
PixInsight job	5WKVQSA1OI1PCGZLSI7NKKID6BFS5HEW
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m39s.94
RA (top/left)	16h43m04s.99
RA (top/right)	16h43m15s.40
RA (bottom/right)	16h40m13s.83
RA (bottom/left)	16h40m05s.66

Dec (center)	+36°27′38″.7
Dec (top/left)	+36°02′32″.6
Dec (top/right)	+36°51′18″.8
Dec (bottom/right)	+36°52′40″.5
Dec (bottom/left)	+36°03′54″.3

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M13: Great Globular Cluster in Hercules

M13: Great Globular Cluster in Hercules

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M13: Great Globular Cluster in Hercules

M13: Great Globular Cluster in Hercules

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