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A catalog of precise reference star positions for the astrometry network of the international comet P/Halley compaign
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1987A&AS...71..525D&db_key=AST
| Lunar occultation summary. II
Results of a second series of 196 two-color photoelectric lunaroccultation observations made within the interval from May 1972 toDecember 1973 are reported. Each observation has been employed toestimate the minimum magnitude difference between the observed objectand possible undetected companions. The study contains the analyses of143 disappearances and 53 reappearances. Eighteen of these eventsmanifest some degree of multiplicity. Included in the study are 18occultation events for Pleiades members.
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Посматрања и Астрометриски подаци
| Сазвежђа: | Ован |
| Ректацензија: | 02h06m35.74s |
| Deклинација: | +17°05'03.3" |
| Apparent магнитуда: | 8.678 |
| Даљина: | 231.481 parsecs |
| Proper motion RA: | 17.3 |
| Proper motion Dec: | -13.8 |
| B-T magnitude: | 9.177 |
| V-T magnitude: | 8.72 |
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