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| I/251 | ICRF VLBI International Celestial Reference Frame (ICRF) (Ma+, 1997) |
| VLBI International Celestial Reference Frame (ICRF) | |
| Author(s) | Ma C., Feissel M. |
| Bibcode | IERS Tech. Note 23 (1997) 1998AJ....116..516M |
| Keywords | optical; Radio; Positional_Data; Stars |
| Note | by exchange from NASA-Goddard |
| Statistics | 608 sources (size: 234Kb) |
| Popularity | |
| Date | Added: 29-Jul-1998 [2000-10-31 in VizieR] |
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