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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.
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Посматрања и Астрометриски подаци
Сазвежђа: | Мали пас |
Ректацензија: | 07h42m15.17s |
Deклинација: | +03°18'34.3" |
Apparent магнитуда: | 8.142 |
Proper motion RA: | -1.5 |
Proper motion Dec: | -2.5 |
B-T magnitude: | 9.353 |
V-T magnitude: | 8.242 |
Каталог и designations:
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