Messier 8 (imaged in narrowband)

" Lagoon nebula "

Object  Details: The Lagoon nebula gets its name from the dark lane running down through the middle. Located in the constellation Sagittarius, M8 is a very bright nebulous region, visible to the naked eye from dark sky locations. Note the dark spotted areas. These are known as "bok globules" which are small dark clouds of gas & dust normally condensing to form stars.  

Date	June 16- July 7, 2007
Location	Starlight Observatory  Glasgow , DE
Exposure	Hubble palette 340 min total exposure (R/SII=11x20 min, G/Ha=2x20 min, B/OIII=4x20min subs) 1x1 bin ccd temp -23c to -35c
Camera	Sbig ST2000xm/ CFW10
Scope/ lens	Astro Physics 130mm/F6 refractor (780mm focal length)
Filter(s)	Astrodon narrowband (SII, Ha, OIII mapped as RGB).
Cooling	water cooled (using aquarium chiller) to near dewpoint
Guider	self guided 2x2 binning  4s exp
Mount	AP1200 gto
Processing	Maxim DL/CCD, CCD Stack,  Fits Liberator, Photoshop CS2, Noise Ninga.
Notes	Second attempt at narrowband imaging.