34 Cancri

34 Cancri
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Cancer
Right ascension 08h 32m 39.87069s[1]
Declination +10° 03′ 57.6306″[1]
Apparent magnitude (V) 6.48[2]
Characteristics
Spectral type A1 V[3][4]
B−V color index −0.007±0.007[2]
Astrometry
Radial velocity (Rv)−11.0±7.4[5] km/s
Proper motion (μ) RA: +4.517[1] mas/yr
Dec.: −6.139[1] mas/yr
Parallax (π)5.7408 ± 0.0912 mas[1]
Distance568 ± 9 ly
(174 ± 3 pc)
Absolute magnitude (MV)0.40[2]
Details
Mass2.67±0.09[6] M☉
Radius2.7[7] R☉
Luminosity69.84[2] L☉
Temperature9,661±111[6] K
Rotational velocity (v sin i)18[6] km/s
Age336[2] Myr
Other designations
34 Cnc, BD+10°1818, GC 11689, HD 72359, HIP 41904, HR 3372, SAO 97902[4]
Database references
SIMBADdata

34 Cancri is a star in the zodiac constellation of Cancer, located about 568 light years away from the Sun.[1] It is a challenge to view with the naked even under good viewing conditions, having an apparent visual magnitude of 6.48.[2] At the distance of this star, its visual magnitude is diminished by an extinction of 0.14 due to interstellar dust.[8]

This is an A-type main-sequence star with a stellar classification of A1 V.[3] It is a chemically peculiar star, possibly of the magnetic-type (CP2), showing an abnormal abundance of strontium.[9] The star is an estimated 336[2] million years old with only a moderate projected rotational velocity of 18 km/s.[6] It has an estimated 2.7[6] times the mass of the Sun and about 2.7[7] times the Sun's radius. The star is radiating 70[2] times the Sun's luminosity from its photosphere at an effective temperature of 9,661 K.[6]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f g h Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Cowley1969 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference deBruijne2012 was invoked but never defined (see the help page).
  6. ^ a b c d e f Cite error: The named reference zorec2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Fracassini2001 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Gontcharov2012 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Wraight2012 was invoked but never defined (see the help page).