Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 07h 52m 13.03173s [1] |
Declination | −40° 34′ 32.8318″ [1] |
Apparent magnitude (V) | 3.71 [2] |
Characteristics | |
Spectral type | K1II+A0.5 [3] |
U−B color index | +0.75 [4] |
B−V color index | +1.05 [4] |
Astrometry | |
Radial velocity (Rv) | +24.00 [5] km/s |
Proper motion (μ) |
RA: -18.00
[1]
mas/
yr Dec.: +5.01 [1] mas/ yr |
Parallax (π) | 9.25 ± 0.83 mas [1] |
Distance | 350 ± 30
ly (108 ± 10 pc) |
Absolute magnitude (MV) | -1.44 [2] |
Details | |
Luminosity | 461 [2] L☉ |
Surface gravity (log g) | 1.66 [6] cgs |
Temperature | 4,601 [6] K |
Metallicity [Fe/H] | +0.02 [6] dex |
Rotational velocity (v sin i) | 2.3 [7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 64440, also known as a Puppis, is a spectroscopic binary [3] star in the constellation Puppis. Its apparent magnitude is 3.71. [2] Located around 108 parsecs (350 ly) distant, [1] the primary is a bright giant of spectral type K1.5II and the secondary is an early A-type star. They orbit with a period just under 7 years and eccentricity 0.38. [3]
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 07h 52m 13.03173s [1] |
Declination | −40° 34′ 32.8318″ [1] |
Apparent magnitude (V) | 3.71 [2] |
Characteristics | |
Spectral type | K1II+A0.5 [3] |
U−B color index | +0.75 [4] |
B−V color index | +1.05 [4] |
Astrometry | |
Radial velocity (Rv) | +24.00 [5] km/s |
Proper motion (μ) |
RA: -18.00
[1]
mas/
yr Dec.: +5.01 [1] mas/ yr |
Parallax (π) | 9.25 ± 0.83 mas [1] |
Distance | 350 ± 30
ly (108 ± 10 pc) |
Absolute magnitude (MV) | -1.44 [2] |
Details | |
Luminosity | 461 [2] L☉ |
Surface gravity (log g) | 1.66 [6] cgs |
Temperature | 4,601 [6] K |
Metallicity [Fe/H] | +0.02 [6] dex |
Rotational velocity (v sin i) | 2.3 [7] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 64440, also known as a Puppis, is a spectroscopic binary [3] star in the constellation Puppis. Its apparent magnitude is 3.71. [2] Located around 108 parsecs (350 ly) distant, [1] the primary is a bright giant of spectral type K1.5II and the secondary is an early A-type star. They orbit with a period just under 7 years and eccentricity 0.38. [3]