nytecam
Postmaster
Reged: 08/20/05
Posts: 9841
Loc: London UK
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There's been recent obs of these two carbon stars on this forum - their spectrum profile is unique! Of possible interest are my lo-res amateur spectra of these [and many more vars!] via my LX200 + Rainbow Optics grating at
http://home.freeuk.com/m.gavin/gensp11.htm
http://home.freeuk.com/m.gavin/gensp21.htm
http://home.freeuk.com/m.gavin/gensp23.htm
Feedback appreciated ;-)
Nytecam
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12” Meade LX200 + 8” Celestron SCTs
Coronado PST
Minolta D7 + Canon 300D + Starlight MX916 + MX5C
SBIG + homebuilt spectrographs + OG prisms + Rainbow grating
www.astroman.fsnet.co.uk
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RLTYS
Post Laureate
Reged: 12/18/04
Posts: 4267
Loc: New York (Long Island)
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Nytecam
Excellant work. You mentioned you have a grating from "Rainbow Optics", I have the "visual" version of the "Rainbow Optics" grating. Great little unit.
Clear Skies
Rich (RLTYS)
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10" F4.8 Refl.
4" F5 Refr. (Genesis)
3" F4 Celestron FirstScope
50mm F12 Refr. (Tasco #6TE-5)
12x63 and 10x50 Binoculars.
"I want to do more then just look."
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nytecam
Postmaster
Reged: 08/20/05
Posts: 9841
Loc: London UK
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Rich - I've had the 'Rainbow' unit for many years - it came with the cylindrical lens for broadening a spectrum visually but I only use the grating alone on scope before a camera as it goes so much fainter/detailed eg mag 12 or fainter in 5m-10m CCD exp;-)
Nytecam
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Nytecam 51N 0.1W
Meade 30cm LX200+C8+Ha+CaK PSTs+spectrographs
SX M9+Lodestar-C CCDs/Canon 300D DSLR
My Meade astrograph-colour deepsky
My supernova discovery
My dome build/spectroscopes/DSO images/Lodestar colour images & videos
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