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HD 31620


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Везани чланци

Lunar occultation summary. III
Observations of 242 photoelectric lunar occultation events studied atErwin W. Fick Observatory are reported. Approximately one-fourth ofthese are reappearances. From each observation are estimated the minimummagnitude differences between the observed object and possibleundetected companions. Occultation observations are given of 23 starsbrighter than 6th mag, including Alpha Vir, Beta-1 Sco, Mu Gem, Xi-2Sgr, Zeta Tau, Lambda Gem, and Beta Cap.

Photoelectric measurements of lunar occultations. VIII
Photoelectric timings are reported for 276 lunar occultation eventswhich were observed between March 1975 and February 1976. The timings(in UTC) are based on Loran G equipment of a lunar laser-ranging groupor on WWV signals. Angular diameters are determined for HR 5301, HD176124, Chi-1-Orionis, and HR 601. Twenty cases of possible or actualdouble stars, including Beta Capricorni, are noted along with oneprobable triple system (51 Piscium). Several technical and computationaldifficulties encountered in this program are discussed.

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Сазвежђа:Бик
Ректацензија:04h58m03.54s
Deклинација:+20°18'49.3"
Apparent магнитуда:8.162
Даљина:341.297 parsecs
Proper motion RA:3.1
Proper motion Dec:-6.9
B-T magnitude:10.068
V-T magnitude:8.32

Каталог и designations:
Proper имена   (Edit)
HD 1989HD 31620
TYCHO-2 2000TYC 1289-399-1
USNO-A2.0USNO-A2 1050-01546089
HIPHIP 23082

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