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HD 77573


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Mass loss rates in the Hertzsprung-Russell diagram
Mass loss rates have been collected for 271 stars of spectral type Othrough M, primarily of population I. Good agreement is found forresults obtained according to six different methods, and it is shownthat the mass loss rate data can be well represented by one empiricalinterpolation formula as a function of the effective temperature andluminosity. The chemically evolved stars are shown to have mass lossrates which are larger than those of normal stars occupying the samepositions in the Hertzprung-Russell diagram by factors of 160 forWolf-Rayet stars and 11 for C-type stars.

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Observation and Astrometry data

Constellation:Hydra
Right ascension:09h03m08.24s
Declination:-08°59'23.6"
Apparent magnitude:8.466
Distance:234.742 parsecs
Proper motion RA:-22.7
Proper motion Dec:-10
B-T magnitude:8.734
V-T magnitude:8.489

Catalogs and designations:
Proper Names
HD 1989HD 77573
TYCHO-2 2000TYC 5444-1704-1
USNO-A2.0USNO-A2 0750-06672879
HIPHIP 44429

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