WASP-69

WASP-69 / Wouri
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 21h 00m 06.19682s[1]
Declination −05° 05′ 40.0349″[1]
Apparent magnitude (V) 9.87±0.03[2]
Characteristics
Evolutionary stage main-sequence star
Spectral type K5V[3]
Astrometry
Radial velocity (Rv)−9.83±0.13[1] km/s
Proper motion (μ) RA: 33.778 mas/yr[1]
Dec.: −93.581 mas/yr[1]
Parallax (π)19.8858 ± 0.0170 mas[1]
Distance164.0 ± 0.1 ly
(50.29 ± 0.04 pc)
Details
Mass0.826±0.029[2] M☉
Radius0.813[2] R☉
Surface gravity (log g)4.59±0.02[4] cgs
Temperature4782±15[4] K
Metallicity [Fe/H]0.10±0.01[4] dex
Rotation23.07 d[2]
Rotational velocity (v sin i)1.27±0.22[4] km/s
Age2[2] Gyr
Other designations
Wouri, BD−05 5432, WASP-69, TYC 5200-1560-1, GSC 05200-01560, 2MASS J21000618-0505398[5]
Database references
SIMBADdata

WASP-69, also named Wouri, is a K-type main-sequence star 164 light-years (50 parsecs) away.[6] Its surface temperature is 4782±15 K. WASP-69 is slightly enriched in heavy elements compared to the Sun, with a metallicity Fe/H index of 0.10±0.01,[4] and is much younger than the Sun at 2 billion years. The data regarding starspot activity of WASP-69 are inconclusive, but spot coverage of the photosphere may be very high.[7]

Multiplicity surveys did not detect any stellar companions to WASP-69 as of 2020.[8]

  1. ^ a b c d e Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c d e Cite error: The named reference Anderson2013 was invoked but never defined (see the help page).
  3. ^ France, Kevin; Arulanantham, Nicole; Fossati, Luca; Lanza, Antonino F.; Loyd, R. O. Parke; Redfield, Seth; Schneider, P. Christian (2018), "Far-ultraviolet Activity Levels of F, G, K, and M Dwarf Exoplanet Host Stars", The Astrophysical Journal Supplement Series, 239 (1): 16, arXiv:1809.07342, Bibcode:2018ApJS..239...16F, doi:10.3847/1538-4365/aae1a3, S2CID 119368148
  4. ^ a b c d e Cite error: The named reference Gill2018 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference NYT-20240112 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Murgas2020 was invoked but never defined (see the help page).
  8. ^ Bohn, A. J.; Southworth, J.; Ginski, C.; Kenworthy, M. A.; Maxted, P. F. L.; Evans, D. F. (2020), "A multiplicity study of transiting exoplanet host stars. I. High-contrast imaging with VLT/SPHERE", Astronomy & Astrophysics, 635: A73, arXiv:2001.08224, Bibcode:2020A&A...635A..73B, doi:10.1051/0004-6361/201937127, S2CID 210861118