[Aavso-photometry] Henden sequence for ASAS002511

[Mike Simonsen]

Below is a sequence for ASAS002511 based on a single night calibration from
Arne Henden.
Four bright V magnitudes from ASAS-3 are included in the notes.
AAVSO charts are in preparation.

Mike Simonsen (SXN)
C. E. Scovil Observatory
Imlay City, MI, USA
http://home.mindspring.com/~mikesimonsen/




Preliminary sequence for ASAS 002511
(2000) 00 25 11.09 +12 17 12.3
Type: UGSU?
Range: 11.1V-<17.0V
V=11.139 +/-0.001 B-V= - 0.096 +/-0.001 V-R= - 0.048 +/-0.001 R-I= + 0.003
+/-0.002
(from dat file)
Sequence: CCD A. Henden and M. Simonsen

#   RA                Dec              n  V         Err        B-V     Err
V-R    Err       R-I      Err
1   00 24 51.47 + 12 13 22.4 1 11.485 0.001 + 0.527 0.002 + 0.337 0.001 +
0.315 0.001
2   00 25 32.69 + 12 15 14.9 1 13.088 0.003 + 0.401 0.004 + 0.244 0.004 +
0.269 0.004
3   00 25 23.26 + 12 19 55.8 1 13.582 0.004 + 0.589 0.006 + 0.363 0.005 +
0.379 0.005
4   00 24 58.85 + 12 17 47.5 1 14.086 0.005 + 0.865 0.009 + 0.509 0.006 +
0.453 0.006
5   00 25 11.40 + 12 19 38.2 1 14.514 0.006 + 0.968 0.013 + 0.547 0.008 +
0.502 0.007
6   00 25 00.57 + 12 22 22.6 1 14.796 0.007 + 0.659 0.012 + 0.410 0.009 +
0.376 0.009
7   00 25 30.38 + 12 18 57.4 1 15.559 0.012 + 0.820 0.027 + 0.457 0.015 +
0.420 0.014
8   00 25 33.42 + 12 19 58.9 1 16.026 0.020 + 0.729 0.039 + 0.425 0.024 +
0.406 0.021
9   00 25 31.40 + 12 17 36.8 1 16.292 0.025 + 0.704 0.047 + 0.454 0.029 +
0.419 0.028
10 00 25 05.52 + 12 16 49.1 1 16.559 0.033 + 0.781 0.063 + 0.370 0.041 +
0.456 0.041
11 00 24 57.72 + 12 22 57.6 1 16.994 0.047 + 1.043 0.109 + 0.751 0.054 +
0.586 0.040
12 00 24 56.05 + 12 22 16.6 1 17.544 0.077 + 0.957 0.170 + 0.745 0.088 +
0.530 0.066
13 00 25 16.58 + 12 17 41.1 1 17.768 0.096 + 0.711 0.171 + 0.545 0.113 +
0.531 0.095

Notes:
1. Zero point errors are expected to be 0.03 magnitudes.
2. Gaps in the sequence can be filled by ASAS-3
A  00 24 44.6 +12 12 46  V=11.158 +/- 0.02  GSC 599 255
B  00 24 36.8 +12 11 49  V=12.057 +/- 0.02  GSC 599 184
C  00 25 09.5 +12 08 58  V=12.207 +/- 0.02
D  00 25 45.8 +12 17 00  V=12.589 +/- 0.02
3. Star D has a 15th mag companion 15"SW and should be used with care.
4. This is a preliminary sequence based on a single night. Revisions can be
expected.

Mike Simonsen
September 17, 2004