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HD 53420


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Photoelectric photometry of M-type stars
UBVRI photoelectric photometry was obtained for 110 M-type starscontained in the Caltech Two-Micron Survey and the revised AFGL Catalog.Of the 110 stars, 58 have a color index (B-R) greater than or equal to 4mag. A graph is given of (V-R) versus (V-I) for the present stars.

Classification of 831 two-micron sky survey sources south of +5 degrees.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975AJ.....80.1011H&db_key=AST

Catalogue d'étoiles variables nouvelles
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观测天体数据

星座:雙子座
右阿森松:07h05m22.72s
赤纬:+10°32'58.5"
视星:9.106
右阿森松适当运动:1
赤纬适当运动:-3.1
B-T magnitude:11.003
V-T magnitude:9.263

目录:
适当名称   (Edit)
HD 1989HD 53420
TYCHO-2 2000TYC 753-1231-1
USNO-A2.0USNO-A2 0975-04573432

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