[vsnet-alert 11652] TT Ari becomes brighter:

[Ivan Andronov]

TT Ari becomes brighter:

object      YYYYMMDD(UT)   mag     code
ARITT      20091110.24713    15.485   VIR
 
Reference stars are
   N          k          h          e          i           L
14.231  13.796  13.428  11.481  13.428  12.699
according to W.Goetz (IBVS 2823) and calibration by A.Henden ftp://ftp.aavso.org/public/calib/ttaribvri.dat


Telescope: AP180 (refractor D=180 mm, f/7.32) + SBIG STL-11000
Filter: clear, which is wider, but close to R (Henden)
Exposure: 180 s
TzecMaun observatory, USA

With best regards,
Virnina Natalia,
Odessa (NMU,ONU), Ukraine