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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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Observation and Astrometry data
| Constellation: | Οφιούχος |
| Right ascension: | 17h24m30.99s |
| Declination: | +09°00'37.0" |
| Apparent magnitude: | 9.693 |
| Proper motion RA: | -2.5 |
| Proper motion Dec: | 11.3 |
| B-T magnitude: | 10.33 |
| V-T magnitude: | 9.746 |
Catalogs and designations:
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