M 9
Date:
Exposure:
FWHM:
Additional Notes:
19 July 2007
3.9 hours LRGB (20:54:54:108 min.)
Colour contributed by Bernhard Hubl
Telescope:
Mount:
Camera:
Filters:
18” f/3.7 Newtonian + 4” Apo f/5.4
Heavy Forkmount
SBIG ST10-XME + ST2000-XME
Astronomik Typ II.c LRGB
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