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HD 30749


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관련 글

Positional reference stars in the Magellanic Clouds
The equatorial coordinates are determined of 926 stars (mainly ofgalactic origin) in the direction of the Magellanic Clouds at the meanepoch T = 1978.4 with an overall accuracy characterized by the meanvalues of the O-C coordinates, Sa = 0.35 arcsec and Sd = 0.38 arcsec,calculated from the coordinates of the Perth reference stars. Thesevalues are larger than the accuracy expected for primary standard stars.They allow the new positions to be considered as those of reliablesecondary standard stars. The published positions correspond to anunquestionable improvement of the quality of the coordinates provided inthe current catalogs. This study represents an 'astrometric step' in thestarting of a 'Durchmusterung' of the Magellanic Clouds organized by deBoer (1988, 1989).

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관련 링크

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다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:황새치자리
적경:04h45m58.54s
적위:-63°33'27.8"
가시등급:8.11
거리:328.947 파섹
적경상의 고유운동:8.5
적위상의 고유운동:78.8
B-T magnitude:9.389
V-T magnitude:8.216

천체목록:
일반명   (Edit)
HD 1989HD 30749
TYCHO-2 2000TYC 8880-869-1
USNO-A2.0USNO-A2 0225-01308255
HIPHIP 22149

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