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[vsnet-newvar 1692] New Variable Star GSC 6846:6 Update

Stan updated his photometry and I changed the observation log below.  Stan and I have approximately a 0.2 mag offset in our zero points.  The maximum brightness occurred between October 17 to October 21.  The star is sinking into the western sky so this will probably be the last report (unless someone else sends observations) for this observing season.  Maybe next season we can determine the period and amplitude of this late type variable.  The summary below has been placed with the finder chart at http://hometown.aol.com/dwest61506/page25.html.

Regards,
Doug West
http://hometown.aol.com/dwest61506/index.html

Observation Log
GSC 6846:6 = IRC -30347 = IRAS 18001-2514
Measured position (D. West): RA 18 03 14.47 DEC -25 14 22.1  J2000, 15 GSC 1.1 stars

UT DATE  TIME Photometry Observer 
19990923.42939           8.36C                        MISAO
19990923.42981           8.34C                        MISAO
20000224.83137           8.41C                        MISAO
20000224.83192           8.41C                        MISAO
2002 Sep 18  01:55      11.49V                  West
2002 Sep 23 08:00 11.66V  V-Rc=2.14         Stan
2002 Sep 30 01:33 11.29V            West
2002 Oct 10 08:00 11.26V, V-Rc=2.04    Stan
2002 Oct 14 08:00 11.25V, V-Rc=2.08             Stan
2002 Oct 17 08:00 11.18V,V-Rc=2.03    Stan
2002 Oct 17 01:15 9.21Rc                   West
2002 Oct 17 01:15 2.01 H alpha       West
2002 Oct 18 01:23       11.03V                           West
2002 Oct 19 08:00 11.21V, V-Rc=2.04    Stan
2002 Oct 21 01:21       11.01V                        West
2002 Oct 22   ?:?? 11.20V, V-Rc=2.20       Stan
2002 Oct 25   ?:?? 11.27, V-Rc=2.08       Stan
2002 Oct 29   ?:?? 11.62V             Stan
2002 Nov 7    ?:?? 11.58V             Stan
2002 Nov 11 00:30      11.32V                        West
2002 Nov 13  ?:?? 11.49V,V-Rc=2.19       Stan

Notes:
1. Tycho 2 B-V = 1.5 per Brian
2. Spectral class: M6
3. West comparison stars: SAO 186183 and GSC 6846:1080. Observations have not been corrected for color differences.
4. Finder chart: http://hometown.aol.com/dwest61506/page25.html
5. The 1999 and 2000 MISAO observations were provided by Seiichi Yoshida.   Seiichi also provided the following information regarding the MISAO observations: Mis KAF-1600 Tycho-2_Catalogue KenIchi_Kadota 0.16-m_f/3.3_hyperboloid_astro-camera_+_MUTOH_CV-16II

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