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[vsnet-alert 2673] CG CMa - sequence & astrometry (Sumner)
- Date: Wed, 24 Feb 1999 12:30:42 +0900 (JST)
- To: vsnet-alert
- From: Taichi Kato <tkato>
- Subject: [vsnet-alert 2673] CG CMa - sequence & astrometry (Sumner)
- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
From: "Bruce Sumner" <b.sumner@bom.gov.au>
Date: Wed, 24 Feb 1999 13:38:18 +1100
Subject: [vsnet-chat 1650] CG CMa - sequence & astrometry
I have just extracted a preliminary comparison star sequence for
CG CMa from CCD field photometry preformed by Arne Henden at
0415 UTC last night (23 Feb) at Flagstaff Station. Note that there
are no errors as this sequence is based only on one nights data.
111. CG CANIS MAJORIS (UG:) Range: 13.716.6V
07 04 05.2 23 45 34
Magnitude in .dat file: 14.089V -0.081BV
ID RA (2000) DEC X Y N V BV
1 07 04 01.4 23 48 47 54 193 1 11.654 1.066
2 07 04 13.4 23 48 06 112 152 1 11.939 1.516
3 07 03 53.9 23 46 04 157 30 1 12.597 0.327
4 07 03 48.0 23 42 11 238 203 1 12.950 0.474
5 07 04 02.9 23 41 07 33 267 1 13.275 0.318
6 07 04 01.7 23 44 40 49 54 1 13.615 0.455
7 07 04 11.8 23 46 09 89 35 1 14.262 0.455
8 07 04 04.9 23 44 59 5 35 1 14.439 1.041
9 07 04 04.0 23 42 57 18 157 1 14.816 0.670
10 07 04 14.8 23 44 50 131 44 1 15.078 0.652
11 07 04 07.1 23 43 43 24 111 1 15.273 0.599
12 07 04 10.9 23 43 52 77 102 1 15.958 0.880
13 07 04 02.8 23 46 29 34 55 1 16.172 0.646
14 07 04 03.6 23 46 11 24 37 1 16.475 0.480
15 07 04 07.7 23 45 23 32 11 1 16.858 0.959
16 07 04 05.6 23 46 00 4 26 1 17.227 0.413
X and Y are positive east and positive north arcsec offsets.
Astrometry of the same CCD frame gave the following position:
07h 04m 05.213 -23d 45" 34.11" (2000)
and photometry gave 14.089V for the magnitude and -0.081B-V
for the colour, confirming the very blue nature of this object.
Revised photometry will be posted when it becomes available.
Bruce Sumner
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