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Keywords_23
Comparison of the XPM catalog with the ICRF2 and other catalogs
P. Fedorov1, Ya. Yatskiv2, V. Bobylev3
1Institute of Astronomy of Kharkiv National University, Kharkiv, Ukraine,
2Main Astronomical Observatory of NAS of Ukraine, Kiev, Ukraine,
3Central Astronomical Observatory at Pulkovo of RAS, St. Petersburg, Russia Abstract:
Results of comparison of the XPM catalog with the ICRF2 and other catalogs are presented and discussed. The XPM catalog is a recent realizaтХЫtion of the ICRS in optical and near-infrared wavelengths. It contains about 314 million objects in magnitude range from 10 to 22 magnitudes, about one thousand of them can be found in the ICRF2. Some ideas on a creation of the new realization of the ICRS in optical range of wavelengths (the HCRF successor) are proposed.

Key words:
catalog, ICRF, proper motion, coordinate system.