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HD 212318 (Calebe Helpa)


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Spectral Classification of Stars in A Supplement to the Bright Star Catalogue
MK spectral types are given for about 584 stars in A Supplement to theBright Star Catalogue. These are compared with Hipparcos parallaxes tocheck the reliability of those classifications. The estimated errors are+/-1.2 subtypes, and 10% of the luminosity classes may be wrong.

Photoelektrische Photometrie von Shell-Sternen
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...15..311H&db_key=AST

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Observation and Astrometry data

Constellation:Aquarius
Right ascension:22h23m27.61s
Declination:+00°36'31.0"
Apparent magnitude:6.947
Distance:111.607 parsecs
Proper motion RA:-15.6
Proper motion Dec:-6.1
B-T magnitude:7.157
V-T magnitude:6.965

Catalogs and designations:
Proper NamesCalebe Helpa
  (Edit)
HD 1989HD 212318
TYCHO-2 2000TYC 560-1322-1
USNO-A2.0USNO-A2 0900-20099854
HIPHIP 110522
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