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Observations of Double Stars and New Pairs. XVII.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1996ApJS..105..475H&db_key=AST
| 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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Osservazione e dati astrometrici
| Costellazione: | Aquila |
| Ascensione retta: | 19h27m13.60s |
| Declinazione: | +03°12'15.3" |
| Magnitudine apparente: | 9.478 |
| Moto proprio RA: | 0.1 |
| Moto proprio Dec: | -22 |
| B-T magnitude: | 10.028 |
| V-T magnitude: | 9.524 |
Cataloghi e designazioni:
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INHABITED SKY
