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HD 187666


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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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观测天体数据

星座:人馬座
右阿森松:19h51m45.07s
赤纬:-17°16'02.9"
视星:8.471
距离:263.158 天文距离
右阿森松适当运动:-7.4
赤纬适当运动:-4.4
B-T magnitude:9.824
V-T magnitude:8.583

目录:
适当名称
HD 1989HD 187666
TYCHO-2 2000TYC 6316-898-1
USNO-A2.0USNO-A2 0675-34429601
HIPHIP 97740

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