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Observations of Double Stars. XVIII. Micrometer observations of 1350 pairs in 1995-1997 are listed.
| Observations of double stars and new pairs. XV The study reports visual and photographic measures listed for 1150 pairsobtained in the time frame 1989.91-1992.15, including 221 new doublestars. Magnitudes were estimated for a part of the objects, especiallythe fainter ones. Plate orientations were calculated from field stars ofknown positions and were precessed to the epoch; numbers of nights andof measured exposures are given. Reobservation of faint, neglected pairsreveal many corrections to the data from the old discovery lists.
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Osservazione e dati astrometrici
Costellazione: | Orione |
Ascensione retta: | 06h01m34.67s |
Declinazione: | +09°58'41.7" |
Magnitudine apparente: | 9.351 |
Moto proprio RA: | 1.8 |
Moto proprio Dec: | -30.7 |
B-T magnitude: | 9.971 |
V-T magnitude: | 9.403 |
Cataloghi e designazioni:
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