K Puppis

k Puppis
Location of k Puppis (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Puppis
k1 Pup
Right ascension 07h 38m 49.380s[1]
Declination −26° 48′ 06.49″[1]
Apparent magnitude (V) +4.50[2]
k2 Pup
Right ascension 07h 38m 49.869s[1]
Declination −26° 48′ 13.80″[1]
Apparent magnitude (V) +4.429[1]
Characteristics
k1
Spectral type B6 V[3]
k2
Spectral type B5 IV[3]
Variable type SX Ari[4]
Astrometry
Parallax (π)9.41 ± 0.80 mas[5]
Distance350 ± 30 ly
(106 ± 9 pc)
k1
Absolute magnitude (MV)−1.19[6]
k2
Absolute magnitude (MV)−0.94[6]
Details[6]
k1
Mass4.3±0.3 M☉
Radius3.7+1.2
−0.6 R☉
Luminosity490 L☉
Surface gravity (log g)4.24±0.15 cgs
Temperature13,600±1,200 K
Rotational velocity (v sin i)114±5 km/s
k2
Mass6.0±0.3 M☉
Radius3.0+0.7
−0.3 R☉
Luminosity1,202 L☉
Surface gravity (log g)4.10±0.15 cgs
Temperature18,500±500 K
Rotational velocity (v sin i)61±5 km/s
Other designations
HIP 37229, CD−26 4707, NSV 3673
k1: HR 2948, HD 61555, SAO 174198
k2: HR 2949, HD 61556, SAO 174199
Database references
SIMBADk Puppis
k1
k2

k Puppis (k Pup, k Puppis) is a Bayer designation given to an optical double star in the constellation Puppis, the two components being k1 Puppis and k2 Puppis.

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  2. ^ Cite error: The named reference Ducati was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference ibvs was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference hipparcos was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference schultz was invoked but never defined (see the help page).