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HD 57494


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DSS Images   Other Images


관련 글

Large and kinematically unbiased samples of G- and K-type stars. V - Evolved stars in the selected areas at + 15-deg declination
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1990PASP..102..242E&db_key=AST

Photoelectric observations of lunar occultations. XI
Occultation observations of 466 events are presented. These includediameter measures of Aldebaran under very bad conditions and a gooddiameter measure of 82 Vir. The list includes 91 reappearances andobservations of 34 double or multiple stars, both new and previouslyknown. The inconsistencies of the observations of Kui 88 are discussed.Further observations are most desirable.

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 observations of lunar occultations. X
Photoelectric occulation results for 461 events observed during 15months are reported. They include 77 reappearances, 4 determinations ofangular diameter, 38 analyses of double or multiple stars including twopreviously unknown bright stars, and 8 previously known bright double ormultiple stars.

Vitesses radiales dans 4 champs de petite latitude galactique.
Not Available

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관측 및 측정 데이터

별자리:쌍둥이자리
적경:07h22m10.28s
적위:+16°44'41.2"
가시등급:8.116
거리:1666.667 파섹
적경상의 고유운동:-1.9
적위상의 고유운동:-2.6
B-T magnitude:8.037
V-T magnitude:8.11

천체목록:
일반명
HD 1989HD 57494
TYCHO-2 2000TYC 1347-431-1
USNO-A2.0USNO-A2 1050-05068721
HIPHIP 35720

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