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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.
| Micrometer observations of double stars and new pairs. XII
Measurements of 2132 pairs and 103 double stars, obtained in both theNorthern and Southern Hemispheres in the period June 1982 to September1984, are listed in a table. The observations were carried out using theSwarthmore College 61-cm refractor, and the 100 and 91 cm telescopes ofthe Cerro Tololo Inter-American Observatory. Corrections to the IDScatalog (1961 version) are given for some of the fainter stars in thesurvey.
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Mosca |
| Ascensione retta: | 12h06m50.90s |
| Declinazione: | -72°12'12.5" |
| Magnitudine apparente: | 10.079 |
| Moto proprio RA: | -36.2 |
| Moto proprio Dec: | 9.5 |
| B-T magnitude: | 10.922 |
| V-T magnitude: | 10.149 |
Cataloghi e designazioni:
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