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Small PN NGC6309 with propellers in Ophiuchus
Posted: Thu Sep 26, 2013 6:54 pm
by Michael Deger
Re: Small PN NGC6309 with propellers in Ophiuchus
Posted: Fri Sep 27, 2013 8:27 am
by starsurfer
Very nice photo! This newly discovered halo is already known to professionals and is being studied. A paper will be published in the future.
Re: Small PN NGC6309 with propellers in Ophiuchus
Posted: Fri Sep 27, 2013 1:06 pm
by geckzilla
Hey, it's newly discovered? The top arm was visible in Hubble imagery from 1995! The bottom one got cut off but is easily implied. Did it just go unnoticed or is 1995 still considered new?
Re: Small PN NGC6309 with propellers in Ophiuchus
Posted: Sun Sep 29, 2013 12:11 pm
by starsurfer
geckzilla wrote:Hey, it's newly discovered? The top arm was visible in Hubble imagery from 1995! The bottom one got cut off but is easily implied. Did it just go unnoticed or is 1995 still considered new?
Hey geckie!! You're right that it was known in 1995. I really should have done my research when I made that post! However, a team of professionals have discovered new outer features.