Feige 55

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HD 149382
Observation data
Epoch J2000      Equinox J2000
Constellation Ursa Major
Right ascension 12h 04m 38.91s
Declination +60° 32′ 09.3″
Apparent magnitude (V) +13.45
Characteristics
Spectral type DAO+M5.5V
Astrometry
Distance 665 ly
(204±24 pc)
Details
Mass 0.486/0.3 M☉
Radius 0.0345/0.33? R☉
Luminosity 10.7/0.0079 L☉
Temperature 56,300/3000? K
Other designations
Feige 55
Database references
SIMBAD data

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Feige 55 is a hot white dwarf approximately 665 light-years away from the Sun in the constellation of Ursa Major. The star is likely a post-AGB star with relatively high luminosity for a standard white dwarf. It is also in a close binary system with orbital period of 1.4933 days.[1]

References

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Coordinates: Sky map 12h 04m 38.91s, +60° 32′ 09.3″


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