The Hercules Cluster (M13)

Posted by kostas_75
on Monday, May 29, 2017

M13 is generally considered the finest globular cluster in the northern skies, mainly because it is visible to the naked eye in a well-known grouping of stars that sails high overhead in the summer sky. It is a swollen mass teeming with perhaps 300.000 to a half-million suns spread across 140 light years or more.

Technical Details

Optics: Vixen VC200L @ f/6.4
Mount: HEQ5 synscan Pro
Guiding: ST-237 guide chip of SBIG ST2000XM
Camera: SBIG ST2000XM
Filter Wheel: SBIG CFW9
Filters: Astronomik LRGB
CCD Temperature: -5 degrees Celsius
Constellation: Hercules
Date: 20 May, 2017
Location: Kifisia, Greece
Exposure
Lum : 60 min (60x1 min)
Red : 30 min (30x1 min)
Green : 30 min (30x1 min)
Blue : 30 min (30x1 min)
Binning: 1x1(L,R,G,B)

Total exposure 2.3 h

Calibration: Darks, Flats, Bias
Software: SkyX, Pixinsight

Comments
To leave a comment you must be a member of our community.
Login to your account now, or register for an account to start participating.
No one has commented yet.
Join our Community!

Our community is FREE to join. To participate you must either login or register for an account.

ADVERTISEMENT
FREE EMAIL NEWSLETTER

Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. View our Privacy Policy.

ADVERTISEMENT
ADVERTISEMENT
Find us on Facebook