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HD 41809


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관련 글

The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
The sixth annual catalog of the Tokyo Photoelectric Meridian Circle(PMC) is presented for 6649 stars which were observed at least two timesin January 1990 through March 1993. The mean positions of the starsobserved are given in the catalog at the corresponding mean epochs ofobservations of individual stars. The coordinates of the catalog arebased on the FK5 system, and referred to the equinox and equator ofJ2000.0. The mean local deviations of the observed positions from theFK5 catalog positions are constructed for the basic FK5 stars to comparewith those of the Tokyo PMC Catalog 89 and preliminary Hipparcos resultsof H30.

Light curve of the AP star TW Columbae
The uvby light curves of the Ap star TW Col are analyzed. The presenceof a small-scale dip in the curves appears to be in conflict with asimple spotted-rotator model. TW Col is the second star, after 46 Eri,for which such a phenomenon seems to be confirmed.

A second list of wide visual binaries
Not Available

A second list of wide visual binaries
Not Available

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관련 링크

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다음 그룹에 속해있음:

관측 및 측정 데이터

별자리:오리온자리
적경:06h07m24.76s
적위:+02°08'31.6"
가시등급:8.583
거리:10000000 파섹
적경상의 고유운동:5.1
적위상의 고유운동:1.6
B-T magnitude:8.83
V-T magnitude:8.604

천체목록:
일반명
HD 1989HD 41809
TYCHO-2 2000TYC 134-2469-1
USNO-A2.0USNO-A2 0900-02332183
HIPHIP 29020
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