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HD 104484 (Ratchet)


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VRI photometry of wide double stars with A- type primaries.
We are presenting VRI photometry of 93 wide visual double stars havinglate B- or A- type primaries, taken from the Annex of Double andMultiple Stars of the HIPPARCOS Input Catalogue. Spectral types havebeen estimated for most of the primaries and for the majority of thesecondaries. 40% of them probably have common origin components, forwhich we calculated photometric parallaxes and some orbital valuesestimates.

UBV photometry of star clusters in the Magellanic Clouds.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1968AJ.....73..569V&db_key=AST

UBV-Helligkeiten von acht Sternpaaren am Äquator
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观测天体数据

星座:室女座
右阿森松:12h01m56.96s
赤纬:+00°06'07.5"
视星:7.778
距离:93.809 天文距离
右阿森松适当运动:-44.8
赤纬适当运动:-23.4
B-T magnitude:8.152
V-T magnitude:7.809

目录:
适当名称Ratchet
HD 1989HD 104484
TYCHO-2 2000TYC 280-264-1
USNO-A2.0USNO-A2 0900-07057723
HIPHIP 58678

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