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Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
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| Photoelectric UVBY beta photometry of 230 stars brighter than m(pg) = 13.0 in the two B = +75 deg fields SA 80 and SA 81
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| Micrometer observations of double stars and new pairs. XIII
From a program of double star observations which emphasizes orbital,neglected, and newly discovered pairs, results obtained from October1984 to January 1987 are presented. A total of 3030 visual and 550photographic measures are listed. The positions in WDS format andDurchmusterung numbers are shown for 117 pairs for which firstobservations appear in this paper. Magnitudes are estimated for some ofthe objects.
| Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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| Bergedorfer Spektral-Durchmusterung der 115 noerdlichen Kapteynschen Eichfelder - Bd.4: Eichfeld 68 bis 91, Deklination +15 deg.
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Membre dels grups següents:
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Dades d'Observació i Astrometria
| Constel·lació: | Virgo |
| Ascensió Recta: | 12h11m57.31s |
| Declinació: | +12°59'59.9" |
| Magnitud Aparent: | 8.671 |
| Distancia: | 86.059 parsecs |
| Moviment propi RA: | -31.6 |
| Moviment propi Dec: | 1 |
| B-T magnitude: | 9.148 |
| V-T magnitude: | 8.711 |
Catàlegs i designacions:
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