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| I/246 | ACT The ACT Reference Catalog (Urban+ 1997) |
| The ACT Reference Catalog | |
| Author(s) | Urban S.E., Corbin T.E., Wycoff G.L. |
| Bibcode | U.S. Naval Observatory, Washington D.C. |
| Keywords | Hipparcos; optical; Positional_Data; Stars; Proper_Motions |
| Category | Critical compilation catalog [CCC] |
| Note | by exchange from NASA-Goddard |
| Statistics | 988758 stars (size: 124Mb) |
| Popularity | |
| Date | Added: 12-Dec-1997 [1998-06-08 in VizieR] |
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