Nu Caeli

ν Caeli
Location of ν Caeli (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Caelum
Right ascension 04h 50m 16.18032s[1]
Declination −41° 19′ 15.0557″[1]
Apparent magnitude (V) 6.07[2]
Characteristics
Spectral type F2/3 V[3] or F1 III-IV[4]
B−V color index +0.37[2]
Astrometry
Radial velocity (Rv)+23.8±0.8[5] km/s
Proper motion (μ) RA: −3.846[1] mas/yr
Dec.: +66.201[1] mas/yr
Parallax (π)20.2691 ± 0.0215 mas[1]
Distance160.9 ± 0.2 ly
(49.34 ± 0.05 pc)
Absolute magnitude (MV)+2.46[6]
Details
Mass1.34[7] M☉
Radius2.107[8] R☉
Luminosity8.011[8] L☉
Surface gravity (log g)4.20±0.14[7] cgs
Temperature6,696[8] K
Metallicity [Fe/H]−0.11[9] dex
Rotational velocity (v sin i)44.9[10] km/s
Age880[7] Myr
Other designations
ν Cae, CD−41°1593, GC 5913, HD 30985, HIP 22488, HR 1557, SAO 217032, CCDM 04503-4119[11]
Database references
SIMBADdata

Nu Caeli (ν Caeli) is a yellow-white hued star in the constellation Caelum. It has an apparent visual magnitude of 6.07, which indicates it is near the lower limit on brightness that is visible to the naked eye. According to the Bortle scale, the star can be viewed from dark suburban skies. Based upon an annual parallax shift of 20.3 mas as seen from Earth, this star is located 161 light years from the Sun.

Houk (1978) listed a stellar classification of F2/3 V for Nu Caeli,[3] which would indicate this is an F-type main-sequence star.[3] In contrast, Malaroda (1975) assigned it to class F1 III-IV,[4] which would suggest it is a more evolved F-type subgiant/giant transitional object. It is an estimated 880 million years old with 1.34 times the mass of the Sun.[7] The star is radiating eight times the Sun's luminosity from its photosphere at an effective temperature of 6,596 K.[8]

A companion is listed in multiple star catalogues. It is a 10th-magnitude star about 13″ away,[12][13] much further away than ν Caeli and unrelated.[14]

  1. ^ a b c d e Cite error: The named reference edr3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Johnson1966 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Houk1978 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Malaroda1975 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. ^ Cite error: The named reference Holmberg2009 was invoked but never defined (see the help page).
  7. ^ a b c d Cite error: The named reference David2015 was invoked but never defined (see the help page).
  8. ^ a b c d Cite error: The named reference schofield2019 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Casagrande2011 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Glebocki2005 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference wds was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference ccdm was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference edr3b was invoked but never defined (see the help page).