Looking At Data

[Tom Droege <tdroege2@earthlink.net>]

I have been running TOM1 since late November where I scan to cover 20 
degrees in Dec by whatever comes over in RA.  The new Dec. drive works 
well, or this data would be a mess.  Everything goes through the pipeline 
easily.

I have accumulated 1,663,265 measurements of 396,514 stars.  The area 
covered is roughly -6 to +14 in declination, and 340 to 160 in RA.  I have 
data from 13 evenings of observations.

Just for fun I applied Welch-Stetson and sorted out those who's statistic 
was > 50.  There were 118 candidates.  Most looked variable to me.  I 
picked out 10 more or less at random and looked them up in VizieR.  5 were 
in the general catalog of variable stars, 5 were not.  The five in the catalog:

X Ari
WX Eri
VV Mon
V0536 Mon
V psc

The five that I did not find:

RA                     Dec.
44.4126	7.1788	
44.8326	6.7287
47.8253	10.8529
48.5033	11.4504
104.4147	-5.4541

The star at 47.8253,10.8529 showed a variation of 1.4 mag.  V mag was 11.7.

The star at 104.4147,-5.4541 showed a variation of .6 mag.  V mag was 9.3.

I think this is generally a good sign.  I am finding (easily) known 
variables.  The others that I picked out looked just as variable, so they 
are possibly real.  I only looked in the general catalog of variables.  The 
others may be listed elsewhere.

A couple of months more data should produce even better results as most of 
the above only had 7 or 8 measurements.  Due to clouds and the like, I do 
not get everything in the range every night that I run.

Tom Droege