[vsnet-alert 5847] (fwd) V445 Pup (N Pup 2000) fading quickly

[Daisaku Nogami <nogami@kikyo.hida.rigaku.kyoto-u.ac.jp>]

 Date: Thu, 26 Apr 2001 21:49:48 +1200
 From: Alan Gilmore <phys162@it.canterbury.ac.nz>
 Subject: [vsnet-alert 0] V445 Pup (N Pup 2000) fading quickly

Photometry by A.C.Gilmore and P.M. Kilmartin, University of Canterbury's Mt 
John Observatory, indicate that V445 Puppis (Nova Puppis 2000) is fading 
quickly after varying around 10th magnitude for the past two months. Presumably 
it is forming a dust envelope.
Photoelectric photometry with the 0.6-m, f/16 Cassegrain telescope.

 2001 UT     V    U-B   B-V   V-R   V-I
Apr. 12.41  9.80 -0.40 +0.56 +0.46 +1.03   
     13.36  9.97 -0.39 +0.56 +0.47 +1.05
     14.37 10.13 -0.39 +0.55 +0.50 +1.07
     16.38 10.21 -0.39 +0.54 +0.50 +1.04
     18.50 10.33 -0.40 +0.53 +0.53 +1.09
     21.41 10.64 -0.33 +0.56 +0.54 +1.13
     22.40 10.61 -0.26 +0.59 +0.56 +1.17
     23.45 10.74 -0.26 +0.62 +0.60 +1.22
     24.35 10.86 -0.32 +0.60 +0.62 +1.27 
     26.33 11.04 -0.14 +0.62 +0.63 +1.29

Uncertainties generally less than 0.02 mag except April 24 which was affected 
by cloud.

Kind regards.
Alan Gilmore & Pam Kilmartin
Mt John University Observatory
P.O. Box 56, Lake Tekapo 8770, New Zealand.
Phone: +64 3 680 6000.  Fax:+64 3 680 6004.

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