TASS Mark IV data for MisV1336, MisV1339

[Michael Richmond <richmond@stupendous.cis.rit.edu>]

  I used the TASS Mark IV database site to look up measurements of
these two stars recently found to be variable by the MISAO project.
They are 

MisV1336
  R.A.   02h17m09s.27
  Decl.  +56o08'33".0  (2000.0)

MisV1339
  R.A.   03h04m34s.90
  Decl.  +57o09'35".0  (2000.0)

  In each case, I plotted both the Mark IV measurements directly
from the engineering database, and also the results of ensemble
photometry in a region around the variable.  In the plots mentioned
below, the engineering data is called "V-band" or "I-band,"
while the ensemble photometry is called "patch V" and "patch I."

 
  The first star, MisV1336, has a close companion about 0.1 arcmin
to the South.  The Mark IV cameras would blend the light from these
two stars together and call it a single object, so one would expect
any variation in the star to be diluted.  The Mark IV data shows
no significant variation in either V or I; that is,
the scatter from the mean magnitude in both V and I was similar to
the typical uncertainty in measurements for stars similar in brightness
to MisV1336.  Here is a graph showing the light curve:

     http://spiff.rit.edu/richmond/temp/tass_misv1336.gif

The output of the ensemble photometry is at

     http://spiff.rit.edu/richmond/temp/tass_misv1336_i.dat
     http://spiff.rit.edu/richmond/temp/tass_misv1336_v.dat

The mean color of this star is (V-I) = 0.52.


  The second star, MisV1339, is not blended with any other
star of similar brightness.  Its light curve shows one feature
in the I-band which may be real, but otherwise no obvious variations:

     http://spiff.rit.edu/richmond/temp/tass_misv1339.gif

The output of the ensemble photometry is at

     http://spiff.rit.edu/richmond/temp/tass_misv1339_i.dat
     http://spiff.rit.edu/richmond/temp/tass_misv1339_v.dat

The scatter from the mean for this star is again similar to that
of neighboring stars of similar brightness.  
The mean color of this star is (V-I) = 0.79.


                                           Michael Richmond