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[vsnet-chat 935] Sequence for N Sgr 1998
- Date: Wed, 13 May 1998 04:00:56 +0000
- To: vsnet-chat@kusastro.kyoto-u.ac.jp
- From: "Bruce Sumner" <b.sumner@bom.gov.au>
- Subject: [vsnet-chat 935] Sequence for N Sgr 1998
- Comments: Authenticated sender is <bas@meteor3.ho.bom.gov.au>
- Priority: normal
- Reply-to: b.sumner@bom.gov.au
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
This nova is now fading below the limits of Hipparcos/Tycho
magnitudes and requires a standardised comparison sequence.
The following stars have been selected to form this sequence.
The positions are from USNO A1.0 and the V and B-V values are
based on preliminary photometry from Arne Henden, USNO.
Magnitudes are accurate to a few hundredths of a magnitude.
The magnitudes to be used by visual observers are shown in the
last column.
Adopted
USNO A1.0 RA (J2000) Dec V B-V visual mag
0600-16845815 18 21 20.2 -27 36 45 10.73 1.32 107
0600-16837039 18 21 16.8 -27 29 52 11.90 1.77 119
0600-16868225 18 21 29.0 -27 33 27 12.25 1.22 122
0600-16911628 18 21 46.8 -27 29 38 12.43 1.82 124
0600-16914792 18 21 48.1 -27 27 23 12.76 0.60 128
0600-16896189 18 21 40.3 -27 33 19 12.79 1.60 128
0600-16901120 18 21 42.3 -27 33 54 12.90 1.75 129
0600-16933659 18 21 55.8 -27 32 50 13.06 1.63 131
0600-16891753 18 21 38.4 -27 27 18 13.44 1.47 134
0600-16907465 18 21 45.0 -27 34 17 13.65 1.74 136
0600-16915569 18 21 48.4 -27 30 50 14.02 1.82 140
0600-16900832 18 21 42.2 -27 33 26 14.27 1.37 143
0600-16884748 18 21 35.4 -27 32 15 14.62 1.67 146
0600-16902140 18 21 41.8 -27 31 36 14.64 1.55 146
0600-16884346 18 21 35.2 -27 31 20 14.92 0.80 149
0600-16899921 18 21 41.8 -27 32 08 15.12 1.64 151
0600-16890659 18 21 38.0 -27 31 56 15.36 1.62 154
18 21 43.6 -27 30 53* 16.04 1.03 160
* Position based on DSS
Bruce Sumner
=========================================
Bruce Sumner
National Meteorological Operations Centre
Bureau of Meteorology
Australia
email: b.sumner@bom.gov.au
phone: +613 9669 4349
fax: +613 9662 1223
=========================================
=========================================
Bruce Sumner
National Meteorological Operations Centre
Bureau of Meteorology
Australia
email: b.sumner@bom.gov.au
phone: +613 9669 4349
fax: +613 9662 1223
=========================================
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