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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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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Kucuk Kopek |
| Sað Açýklýk: | 07h42m15.17s |
| Yükselim: | +03°18'34.3" |
| Görünürdeki Parlaklýk: | 8.142 |
| özdevim Sað Açýklýk: | -1.5 |
| özdevim Yükselim: | -2.5 |
| B-T magnitude: | 9.353 |
| V-T magnitude: | 8.242 |
Kataloglar ve belirtme:
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