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TYC 834-1305-1


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Magnitudes of selected stellar occultation candidates for Pluto and other planets, with new predictions for Mars and Jupiter
Occultation predictions for the planets Mars and Jupiter are presentedalong with BVRI magnitudes of 45 occultation candidates for Mars,Jupiter, Saturn, Uranus, and Pluto. Observers can use these magnitudesto plan observations of occultation events. The optical depth of theJovian ring can be probed by a nearly central occultation on 1992 July8. Mars occults an unusually red star in early 1993, and theoccultations for Pluto involving the brightest candidates would possiblyoccur in the spring of 1992 and the fall of 1993.

Photoelectric observations of lunar occultations. XIII
Occultation observations made with the 0.76 m reflector at McDonaldObservatory are presented, for 319 events occurring between Jan. 15,1981 and Feb. 7, 1982. One table reports timings, and a second recordsobservations of 16 double stars, in particular, Nu Gem observationsreveal that the two close components are similar in color. This allowsan estimation of individual visible magnitudes (near 4.60 and 5.32)suggesting that the secondary is a late B-type main-sequence star. SAO158929 observations reveal systematic differences in angular diametervalues. Of the 16 observed double stars, 9 appear to be new discoveries,including SAO 93067, SAO 94595, and SAO 98770. A third table gives fullydarkened angular diameters for the stars SAO 158929, SAO 77516 Y Tau,and SAO 119035 Nu Vir.

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观测天体数据

星座:獅子座
右阿森松:09h45m36.03s
赤纬:+14°53'12.6"
视星:8.823
距离:373.134 天文距离
右阿森松适当运动:-14.1
赤纬适当运动:-35.8
B-T magnitude:10.39
V-T magnitude:8.953

目录:
适当名称
TYCHO-2 2000TYC 834-1305-1
USNO-A2.0USNO-A2 0975-06327177
HIPHIP 47887

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