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HD 174217


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A classification of Be stars
Based upon a sample of 140 stars observed over 20 years for which about5,000 spectrograms are available, a classification scheme of Be stars ispresented. This is the first attempt to subdivide the Be star group intophysically significant subgroups, from which typical objects can beselected for further study. The four groups proposed are based upon adiscussion of spectrum characteristics, multicolor photometry,polarization, rotational velocities, UV spectral types and timevariability. Starting with the group membership of a Be star,predictions can be made of the future behavior of it.

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Observation and Astrometry data

Constellation:Corona Australis
Right ascension:18h51m05.97s
Declination:-37°14'52.1"
Apparent magnitude:7.563
Distance:746.269 parsecs
Proper motion RA:1.7
Proper motion Dec:2.4
B-T magnitude:9.439
V-T magnitude:7.718

Catalogs and designations:
Proper Names
HD 1989HD 174217
TYCHO-2 2000TYC 7420-1345-1
USNO-A2.0USNO-A2 0525-38640860
HIPHIP 92502

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