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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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Observation and Astrometry data

Constellation:おとめ座
Right ascension:12h01m56.96s
Declination:+00°06'07.5"
Apparent magnitude:7.778
Distance:93.809 parsecs
Proper motion RA:-44.8
Proper motion Dec:-23.4
B-T magnitude:8.152
V-T magnitude:7.809

Catalogs and designations:
Proper NamesRatchet
HD 1989HD 104484
TYCHO-2 2000TYC 280-264-1
USNO-A2.0USNO-A2 0900-07057723
HIPHIP 58678
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