ET.SKY-MAP

오늘의사진

HD 12816

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The galactic reddening law - The evidence from uvby-beta photometry of B stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985A&A...142..189T&db_key=AST
Four-colour and H beta photometry of southern B stars at high galactic latitudes Four-color and H beta photometry has been obtained for 105 early-type HDstars with galactic latitudes less than -45 deg. They are mostly late Bstars of luminosity class V to III. Two new Am stars and several Ap orBp stars are detected photometrically. Absolute magnitudes aredetermined from the photometry and from MK types where available. Theinterstellar reddening of many of the more distant stars is very small,suggesting either the existence of undetected peculiar stars in thesample or that there are areas of effectively zero reddening at highsouthern galactic latitudes.
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Observation and Astrometry data

Constellation:	Eridanus
Right ascension:	02^h03^m53.58^s
Declination:	-55Â°39'41.0"
Apparent magnitude:	8.357
Distance:	344.828 parsecs
Proper motion RA:	19.9
Proper motion Dec:	10.1
B-T magnitude:	8.352
V-T magnitude:	8.357

Catalogs and designations:

Proper Names
HD 1989	HD 12816
TYCHO-2 2000	TYC 8485-582-1
USNO-A2.0	USNO-A2 0300-00625569
HIP	HIP 9638

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