Kim,
Knowing Wolfgang Steinicke for having exchanged a few e-mails with him about his database, I would say he will be more than happy to give you more information about NGC2313 being a dark nebula or whatever it is&
His e-mail address is steinicke-zehnle@t-online.de
I still maintain there IS a dark nebula around the bright object, it just isn t very conspicuous, but it sure is there&
Ciel clair / Clear skies,
Pierre Paquette
http://www.starpete.tk
Groupe d'astronomes amateurs Polaris
http://www.astropolaris.tk
Répertoire des instruments d'astronomes amateurs québécois
http://www.quebecscope.tk
-----Original Message-----
From: owner-netastrocatalog-announce@atmob.org [mailto:owner-netastrocatalog-announce@atmob.org] On Behalf Of Kim Gowney
Sent: 7 septembre 2003 19:40
To: netastrocatalog-announce@atmob.org
Subject: Re: (IAAC) NGC2313 a Dark Nebula??
Nice one Owen, thanks for helping to clear that up, I had not realised that Harold's positions were JD1950, it becomes clear that they were at least talking about the same thing at any rate, you conclusion that Wolgang has made an erroneous description seems correct as well, interesting that they both use DN but to mean different things though.
On thing for certain, I will be trying hard to get a look at it later in the year!!
----- Original Message -----
From: Owen Brazell
To: netastrocatalog-announce@atmob.org
Sent: Sunday, September 07, 2003 11:07 PM
Subject: Re: (IAAC) NGC2313 a Dark Nebula??
I think that Wolfgang has his description wrong. The object is described in the NGC as F,vS,R i.e. Faint, very small and Round which would fit the appearance of the bipolar nebula. It was discovered by D'Arrest probably using an 11" refractor. There is a dark nebula from Lynds catalogue nearby but that would not fit the initial description.
Owen
At 20:17 07/09/2003 +0100, you wrote:
"urn:schemas-microsoft-com:office:office" xmlns:w = "urn:schemas-microsoft-com:office:word">
You're sharper than I am Pierre! I was so intent on looking at the descriptions I never even noticed that Corwin and Steinicke had different Co-ordinates for the same object, in fact Corwin's position is nearly half a degree west of Steinicke's and the DSS image for that position shows only a small asterism, there is no apparent darkening of the background at all.
Steinicke however has the bright nebulas position, but describes it as dark.
The plot thickens!!
Either that or I have missed something fundamental here.
----- Original Message -----
From: Pierre Paquette
To: netastrocatalog-announce@atmob.org
Sent: Sunday, September 07, 2003 7:20 PM
Subject: RE: (IAAC) NGC2313 a Dark Nebula??
Kim,
Checking the Digitized Sky Survey for both positions reveals the same object as in the picture you gave the URL to in your first message for Steinicke s position, and mysteriously nothing definite for Corwin s position, though there might be a background dark nebula, my laptop s screen not showing it really much, maybe it s better on a real screen&
Still the same laptop does show some (faint but definite) dark nebula at and around Steinicke s position. Steinicke quotes LDN 1653, which is a large object& Use a large field of view to see it. I used 30 arcmins:
http://archive.stsci.edu/cgi-bin/dss_search?r=06:58.0&d=-07:57&e=J2000&h=30&w=30&f=gif
Ciel clair / Clear skies,
Pierre Paquette
http://www.starpete.tk
Groupe d'astronomes amateurs Polaris
http://www.astropolaris.tk
Répertoire des instruments d'astronomes amateurs québécois
http://www.quebecscope.tk
-----Original Message-----
From: owner-netastrocatalog-announce@atmob.org [mailto:owner-netastrocatalog-announce@atmob.org] On Behalf Of Kim Gowney
Sent: 7 septembre 2003 13:56
To: netastrocatalog-announce@atmob.org
Subject: Re: (IAAC) NGC2313 a Dark Nebula??
Further from the NGC/IC Projects site
From:
Dr. Harold G. Corwin Jr.'s
NGC/IC Database Files
N2313 06 55 38.06 -07 52 36.1 GSC 2 DN+*.
..................................................................................................................
From:
Wolfgang Steinicke's
NGC/IC Database Files
2313 * 2 MON 06 58 02.8 -07 56 42 DN LDN 1653
................................................................................................................................................
Both seem to have 2313 listed as a Dark Nebula
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