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Re: HD 189735



Michael:
The colors you list look rather stange.  Typically, V-I ~ B-V ~ .5(V-R).  SIMBAD gives a B-V of 0.23.  Was there a typo or am I missing something?
Thanks,
Doug West


Michael wrote:
As John point out, this will be interesting in color, too, so 
  please take filtered data. It is bright enough:

  B=11.4
  V=9.76
  R=10.2
  I=9.34

  ...according to TASS and USNO A2. Tycho-2 says it has
  "suspected 
  intrinsic variability"