Return to Home Page
Date: Sat, 12 Jun 93 14:28:34 CDT From: gav@astro.as.utexas.edu (Gerard de Vaucouleurs) Subject: Possible DSN in N4856 Dear Dr. Kato: I am retransmitting to you a message from McDonald Observatory for confirmation of a possible SN in NGC4856. We have no large scale prior photograph here allowing a comparison. The star was estimated at mv ~ 15.5 and is ~10" S of the nucleus. Please excuse us if it is a false alarm. Best regards. G. de Vaucouleurs >From wren Sat Jun 12 03:12:03 1993 Date: Sat, 12 Jun 93 03:12:02 CDT From: wren (Bill Wren) Posted-Date: Sat, 12 Jun 93 03:12:02 CDT Received-Date: Sat, 12 Jun 93 03:12:02 CDT Message-ID: <vsnet-history1131@hoge.baba.hajime.jp> Received: by astro.as.utexas.edu (5.65/1.00) id AA21535; Sat, 12 Jun 93 03:12:02 CDT To: gav, wheel Subject: NGC4856/possible SN Cc: bryan Status: RO My search has turned up a SN candidate in NGC 4856. I am not yet prepared to report to IAU because I lack a quality comparison chart or photograph. I am hoping you might be able to help locate one. I just spent several hours in the library with the RC3 and other reference catologues and atlases and so far have been unable to find any journal sources. The star is located ~10"South of the nucleus of NGC 4856 at mv~15.5. It does NOT appear on the Thompson/Bryan chart which claims a limiting magnitude to around 16.0. The star is close in though so magnitude estimates are tough. The POSS image is (of course) burned in so close to the nucleus and is little help. The other information I have to go on is the fact that I have searched this field before on at least three occassions through the 36-inch and have made no note of the stars presence. Moonlight and airmass conditions were nearly identical for one of the prior observations. There is another star located ~30"SE of 4856 at mv~13.5 that does appear on Thompson/Bryan and POSS. The suspect star did not appear to move in the 90 minutes that I observed it this evening. Can you help? Bill
Return to the Powerful Daisaku
vsnet-adm@kusastro.kyoto-u.ac.jp
