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New optical positions and proper motions of late type stars associated with SiO masers
The 33 cm astrograph of the Bordeaux Observatory has been used to derivewith respect to AGK3 reference stars, accurate positions of late typevariable stars variable stars associated with strong SiO maser emission.It is suggested that selected maser stars can be used to link theHIPPARCOS system and the VLBI extragalactic reference frame. The propermotions of the program (SiO) and reference stars are derived and, forthe program stars, are compared to the McCormick catalog of propermotions.
| Photoelectric observations of lunar occultations. XI
Occultation observations of 466 events are presented. These includediameter measures of Aldebaran under very bad conditions and a gooddiameter measure of 82 Vir. The list includes 91 reappearances andobservations of 34 double or multiple stars, both new and previouslyknown. The inconsistencies of the observations of Kui 88 are discussed.Further observations are most desirable.
| Photoelectric measurements of lunar occultation. VI. Further observational results.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973AJ.....78..482D&db_key=AST
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Группы:
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Наблюдательные данные и астрометрия
| Созвездие: | Лев |
| Прямое восхождение: | 09h48m50.39s |
| Склонение: | +10°33'32.4" |
| Видимая звёздная величина: | 9.488 |
| Собственное движение RA: | -2.2 |
| Собственное движение Dec: | 15.2 |
| B-T magnitude: | 9.969 |
| V-T magnitude: | 9.528 |
Каталоги и обозначения:
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