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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.
| Meridian observations made in Brorfelde (Copenhagen University Observatory) 1975-76.
This catalogue presents positions for selected faint stars mainly fromAGK3 observed with the 7" transit circle at Brorfelde. The stars aredistributed in 43 selected areas around radio sources and are suitableas reference stars for measuring the optical counterparts to the radiosources. The obscr 'itioi cre carried out from 1975.16 to 1976.04, andevery star was observed at least two times giving a m.s.e. of "13 forthe catalogue positions given in the FK4 system. These positions usedtogether with AGK3 proper motions will in the period 1975 to 1980 have am.s.e. at the epoch ranging from `:13 to `:15, which is less than halfof what is expected when using AGK3 positions. Key words: transit circle- catalogue of positions
| Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Boote |
| Ascensione retta: | 14h48m09.93s |
| Declinazione: | +09°29'24.0" |
| Magnitudine apparente: | 9.63 |
| Moto proprio RA: | -22 |
| Moto proprio Dec: | 20.5 |
| B-T magnitude: | 11.112 |
| V-T magnitude: | 9.753 |
Cataloghi e designazioni:
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