... 2007: . A Young Binary System Theta 1 Ori C. Based on the interferometer observations on BTA, for the first time we drew an orbit, calculated the masses, luminosity and spectral classes of the components of a very young (~ 100 thousand years old) massive (a total mass of 48 times the Sun) binary system Theta 1 Ori C in the nearest to us Orion complex of star formation. Archive . ...

... Cou 985. WDS 13320]3109a 21.18 ^ 0.30 1986.02 ^ 0.01 0.634 ^ 0.003 0.271 ^ 0.002 153.4 ^ 4.0 103.9 ^ 3.0 257.5 ^ 2.5 [0.0009 WDS 14310[0548b 22.98 ^ 0.30 1993.62 ^ 0.02 0.499 ^ 0.010 0.243 ^ 0.002 49.1 ^ 2.0 13.8 ^ 2.0 121.0 ^ 2.5 [0.0034 WDS 14492]1013c 9.98 ^ 0.04 1988.059 ^ 0.03 0.491 ^ 0.001 0.127 ^ 0.001 45.8 ^ 2.0 142.3 ^ 2.0 156.8 ^ 3.0 [0.0038 WDS 16384]3514d 27.17 ^ 0.20 1993.65 ^ 0.40 0.772 ^ 0.070 0.181 ^ 0.050 50.1 ^ 8.0 175.7 ^ 4.0 82.2 ^ 4.0 [0.0064 ...