Zeta Apodis

"ζ Apodis" redirects here. Not to be confused with Z Apodis.
ζ Apodis
Location of ζ Apodis (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Apus
Right ascension 17h 21m 59.47769s[1]
Declination −67° 46′ 14.4084″[1]
Apparent magnitude (V) +4.78[2]
Characteristics
Spectral type K2 III[3]
U−B color index +1.27[2]
B−V color index +1.21[2]
Astrometry
Radial velocity (Rv)+11.38±0.12[1] km/s
Proper motion (μ) RA: −37.437 mas/yr[1]
Dec.: −7.925 mas/yr[1]
Parallax (π)11.1175 ± 0.1047 mas[1]
Distance293 ± 3 ly
(89.9 ± 0.8 pc)
Absolute magnitude (MV)−0.04[4]
Details
Radius18.608[5] R☉
Luminosity126±8[5] L☉
Temperature4,486±125[5] K
Other designations
ζ Aps, CP-67 3310, FK5 3374, HD 156277, HIP 84969, HR 6417, SAO 253882.[6]
Database references
SIMBADdata

Zeta Apodis, Latinized from ζ Apodis, is the Bayer designation for a star in the southern constellation of Apus. It has an apparent visual magnitude of +4.78,[2] which is bright enough to allow it to be seen with the naked eye. The distance to this star is known from parallax measurements to be around 293 light-years (90 parsecs).[1]

The spectrum of Zeta Apodis matches a stellar classification of K2 III,[3] with the luminosity class of III indicating it is an evolved giant star. Zeta Apodis has expanded to 18 times the size of the Sun irradiates with 126 times the luminosity of the Sun. The outer atmosphere has an effective temperature of 4,486 K,[5] which gives it the orange-hued glow of a K-type star.[7]

  1. ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b c d Cite error: The named reference clpl4_99 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference tycho-gaia was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).