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HD 48979

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Photoelectric filter photometry of the flux depression at 5200 A in Ap-stars A new photometric index was used to characterize the flux depression at5200 A in a photoelectric filter photometric study of a large number ofnormal A-stars, Ap-stars, Am-stars, and Hg-Mn-stars. The new index isdefined as a = g - (h + y)/2, where g and h are the brightnesses at 5240and 5020 A, respectively, measured by interference filters, and y is thebrightness measured with a Stromgren filter. The index reveals a markedcontrast between normal and peculiar stars.
On the variability of the peculiar A type star HD 49976. Abstract image available at:http://adsabs.harvard.edu/abs/1975A&A....44..405M
Spectroscopic observations of stars in HII regions. Not Available
Radial velocities of southern B stars determined at the Radcliffe observatory 6. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972MNRAS.158...85C&db_key=AST
Observations of stars in HII regions : spectral classification and UBVphotometry. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971AJ.....76..260C&db_key=AST
A Catalogue of H II Regions. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4..257S&db_key=AST
Symmetric Galactic Nebulae. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955ApJ...121..604J&db_key=AST

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Observation and Astrometry data

Constellation:	Licorne
Right ascension:	06^h45^m57.75^s
Declination:	-07Â°20'20.2"
Apparent magnitude:	7.118
Distance:	189.753 parsecs
Proper motion RA:	-2.1
Proper motion Dec:	0.5
B-T magnitude:	7.197
V-T magnitude:	7.125

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 48979
TYCHO-2 2000	TYC 4812-1487-1
USNO-A2.0	USNO-A2 0825-03136350
HIP	HIP 32407

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