[vsnet-obs 28838] SN 2000cx (APO)

[Hitoshi YAMAOKA <yamaoka@rc.kyushu-u.ac.jp>]

>Date: Fri, 28 Jul 2000 12:27:16 -0400
>From: David Bishop <dbishop@vhdl.org>

-------- Original Message --------
>From: Kevin Krisciunas <kevin@lensing.astro.washington.edu>
>Subject: 2000cx

>OK - I have derived the V magnitude and colors of the star now labeled
>number 6 on my chart at
>
>http://vsnet.astro.washington.edu/kevin/apo.html
>
>That star, just north of the galaxy, is a better one to use than
>numbers 4 and 5 (which are further away and more likely to be off the
>chip).  
>
>For number 6 I get (with internal errors)
>
>  V      +/-    B-V     +/-     V-R    +/-     V-I   +/-
>
>12.796  0.004   0.672  0.011   0.430  0.005   0.783  0.004
>
>
>_______________
>
>Yesterday morning I got some good frames on 2000cx.  This SN was
>really found before maximum.  You recall that I measured it at V = 14.00
>and 13.82 on July 19 and 20 UT.  Yesterday (July 27 UT) it was
>
>    JD        V      +/-    B-V           V-R            V-I
>
> 752.8828   13.279  0.004   0.146  0.009  -0.126  0.005  -0.414  0.006
>
>
>How curious that the B-V color is not changing.  There is a chance
>I can get IR data on it this Sunday morning with APO.  
>
>Kevin

SN2000cx  20000727.383  13.279V   APO
SN2000cx  20000727.383  13.425B   APO
SN2000cx  20000727.383  13.405R   APO
SN2000cx  20000727.383  13.693I   APO

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