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#1
September 15th 07, 06:47 AM
posted to alt.binaries.pictures.astro
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ASTRO: early look-see at Cass A
http://www.narrowbandimaging.com/3c4...o3shb_page.htm
it is 4 x 30 min Halpha and 7 x 30 minutes [OIII] 
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#2
September 15th 07, 05:51 PM
posted to alt.binaries.pictures.astro
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ASTRO: early look-see at Cass A
Looks like that star doesn't show in your OIII filter with IR cutoff.
Carbon star is looking like the answer. No much HII in that guy. Rick Richard Crisp wrote: http://www.narrowbandimaging.com/3c4...o3shb_page.htm it is 4 x 30 min Halpha and 7 x 30 minutes [OIII]
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