[Aavso-photometry] BVRI sequence for ASAS102522-1542.4

[Mike Simonsen]

New charts with Henden and ASAS-3 photometry have been uploaded to the chart
team ftp for checking.
Below is the BVRI sequence from Henden and the ASAS Vmag and error
information for the sequence.

I expect to have similar new charts and BVRI photometry for ASAS023322 done
within an hour or so.


Mike Simonsen

*********************************
C. E. Scovil Observatory
http://home.mindspring.com/~mikesimonsen/
AAVSO Chart Team
charts at aavso.org
CVnet Administrator
http://cvnet.aavso.org

**********************************


ASAS102522-1542.4
(2000) 10 25 22.23 -15 42 21.7 (from dat file)
12.564V +/-0.001,  B-V= 0.065 +/-0.001 (from dat file)
Type: UGSU
Range: 12.2V-19:
Photometry: A. Henden


# RA(2000)       Dec(2000) N V         Err        B-V   Err        V-R
Err        I-R     Err
1 10 25 05.56 - 15 41 10.1 1 13.867 0.002 + 0.994 0.004 + 0.567 0.003 +
0.522 0.003
2 10 25 32.43 - 15 43 36.5 1 14.475 0.003 + 0.558 0.004 + 0.370 0.004 +
0.359 0.004
3 10 25 31.37 - 15 39 42.9 1 14.887 0.004 + 0.651 0.006 + 0.392 0.006 +
0.371 0.006
4 10 25 08.28 - 15 41 20.0 1 15.202 0.004 + 0.661 0.006 + 0.411 0.006 +
0.384 0.006
5 10 25 33.82 - 15 40 01.2 1 15.480 0.005 + 0.688 0.008 + 0.432 0.007 +
0.390 0.008
6 10 25 03.84 - 15 41 11.2 1 16.098 0.008 + 0.792 0.012 + 0.515 0.011 +
0.440 0.011
7 10 24 57.42 - 15 43 36.3 1 16.653 0.011 + 0.776 0.018 + 0.494 0.016 +
0.401 0.018


Notes:

1. This is a single night sequence. Errors are expected to be +/-0.02 or
better.

2. There a four stars with ASAS-3 V magnitudes used to fill in the brighter
end of this sequence.

#  RA               Dec           Vmag/err
a- 10 25 45.9  -15 41 40   11.70/0.042
b- 10 25 18.7  -15 38 33   12.28/0.06
c- 10 26 00.2  -15 49 05   12.54/0.07
d- 10 26 01.1  -15 35 23   13.41/0.14

3. According to H. Bond (vsnet-alert 8830) a spectrogram of ASAS
J102522-1542.4
covering 3500-5300 A was obtained by A. Pasten, using the SMARTS 1.5m
telescope
at Cerro Tololo on 2006 Jan. 29.18.

The spectrum shows broad, shallow absorption lines of the Balmer series and
He I
4471 A.  This is typical of a dwarf nova at maximum light, and confirms ASAS
J102522-1542.4 as a new member of the dwarf-nova class.


Mike Simonsen
January 31, 2006

***********************************************************


Mike Simonsen

*********************************
C. E. Scovil Observatory
http://home.mindspring.com/~mikesimonsen/
AAVSO Chart Team
charts at aavso.org
CVnet Administrator
http://cvnet.aavso.org

**********************************