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HD 198864

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The Diffuse Ionized Interstellar Medium: Structures Resulting from Ionization by O Stars Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1993ApJ...417..579M&db_key=AST
New spectral classifications for O-type stars in the Northern Hemisphere In order to update the classifications of O and B stars in the vicinityof the sun, moderate-resolution spectra have been obtained in thewavelength region about 4000 A to about 5000 A of 32 O and B starswithout published luminosity classifications. Normalized spectra andrevised spectral classifications are presented. Two of the stars arefound to be members of the O3 spectral class.
A catalogue of galactic O stars. The ionization of the low density interstellar medium by runaway stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974RMxAA...1..211C&db_key=AST
A new general O type stars catalogue Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973A&AS...12..277G&db_key=AST
Observations spectroscopiques de quelques étoiles Of (I) Not Available

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Observation and Astrometry data

Constellation:	Wassermann
Right ascension:	20^h53^m14.25^s
Declination:	+02Â°26'59.9"
Apparent magnitude:	8.603
Distance:	102.249 parsecs
Proper motion RA:	8.4
Proper motion Dec:	-12.3
B-T magnitude:	9.138
V-T magnitude:	8.648

Catalogs and designations:

Proper Names	(Edit)
HD 1989	HD 198864
TYCHO-2 2000	TYC 517-185-1
USNO-A2.0	USNO-A2 0900-19142197
HIP	HIP 103087

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