Astrophotography by Eddie Guscott
M13 is a globular cluster just visible to the naked eye in the constellation of Hercules. There are about 160 or so of these clusters that surround our Milky Way. M13 contains more than 100,000 stars and lies at a distance of about 20,000 light years.
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| Date/Location: | Corringham 25 August 2007 |
| Equipment: | Meade 8" f/10 ARC |
| Camera/Exposure: | ST10XME CCD camera + Astrodon filters |
| LRGB 90/40/40/40 | |
| Notes: |
Click here or on image for a larger (400Kb) image
| Date/Location: | Corringham 14 May 2007 |
| Equipment: | TMB 5" F6 refractor on Paramount |
| Camera/Exposure: | ST2000XM ccd camera LRGB 90/50/50/50 |
| Notes: | This is my best M13 to date. MaximDL reported stars at 1.6 arc seconds FWHM |
Click here or on image for a larger (600Kb) image
| Date/Location: | Comberton, Cambridge - 6th May, 2005 |
| Equipment: | TMB 5" F6 refractor on AP900GTO mount |
| Camera/Exposure: | ST2000XM ccd camera RGB 50/50/50 (each 10 x 5 mins) |
| Notes: | This is my best M13 to date. Average seeing and transparency. |
< >Click here for a larger (450Kb) picture
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| Date/Location: | Dengie Marshes, Essex 23 April 2004 | |
| Equipment: | TMB 5" F6 refractor on AP900GTO mount | |
| Camera/Exposure: | ST2000XM ccd camera RGB 20/20/20 (each 4 x 5 mins) | |
| Processing: | Calibration, alignment & combining with AIP4WIN, post processed (levels & curves ) in Photoshop 7, DDP in Maxim DL | |
| Notes: | Taken from my local dark sky site, a big improvement on my previous effort (below). The exposures were kept short to try and preserve tight stars and also star colours. |
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