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HD 16883 (SUNSHINE)


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Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.

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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观测天体数据

星座:白羊座
右阿森松:02h43m01.04s
赤纬:+20°13'50.1"
视星:7.665
距离:263.852 天文距离
右阿森松适当运动:7.3
赤纬适当运动:-12.3
B-T magnitude:9.101
V-T magnitude:7.784

目录:
适当名称SUNSHINE
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HD 1989HD 16883
TYCHO-2 2000TYC 1229-195-1
USNO-A2.0USNO-A2 1050-00730993
HIPHIP 12688

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