Our recent observations with the Hubble Space Telescope (August 29, 2014)
led to revealing a highly isolated dwarf spheroidal galaxy
a distance of 2.12±0.07 Mpc from the Milky Way. The dSph galaxy
locates on the southern sky
J2000.0) and has a stellar mass about 1/10000 of the Milky Way mass.
SS433 is a close binary system, one star is a supergiant, a second one is a
black hole. The supergiant's matter overflows to the neighbouring black
hole and floods the hole with a powerful mass flux: 6 millions of billions
tons per second (that is one Earth mass for 11 days). Even a black hole
cannot accept such an enormous mass flux, a supercritical accretion disk
The variability of the spectrum of the optical component of the IR-source
IRAS01005+7910 was discovered for the first time in the BTA spectra .
Long-term monitoring of the object was carried out during 2002-2013 with
a high spectral resolution (R=60000).
Astronomers of the SAO together with an international group of scientists
have proposed an explanation to the long-standing
mystery of why magnetic fields are more common amongst cool white dwarf
stars than amongst young and hotter ones.