Aslan, Z.; Khamitov, I.M.; Gumerov, R.I.; Ibragimov, A.A.; Nemtinov, A.; Ivantsov, A.V.; Hudkova, L.A.; Pinigin, G.I.; Shulga, A.V.
(Кинематика и физика небесных тел, 2005)
Modern astrometric projects require precise positional measurements of objects down to magnitude 20m–22m. For ground-based observations, this is possible by the use of astrographs with apertures 1 meter or more with precise ...