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Cometocentric coordinates of the tail axis of comet 67P/Churyumov-Gerasimenko
Ibragimov, A. A.
In this paper, we consider errors in the measurement of cometocentric coordinates. The sequence of actions for determining the cometocentric coordinates by perspective projection of the image points of the comet onto the orbital plane is given on the example of comet 67P. Conditions are shown that increase the accuracy of determining the angle of …
Method of evaluation of the most probable mean radial velocities of open star clusters
Kovaleva, D. A.; Kalinkin, A. D.; Kondratev, N. E. +1 more
In this article the method of self-consistent estimate of star clusters' average radial velocity by kinematic parameters was proposed. The method is based on convergent point method of probable cluster members determination. By modelling the method validation was held and properties of received estimate depending on a number of cluster parameters …