Star in the constellation Caelum
WASP-159 is a star located in the southern constellation Caelum , the chisel. It has an apparent magnitude of 12.84,[ 3] telescopes with an aperture of at least four inches, but not to the naked eye . The star is located relatively far at a distance of 2,380 light-years based on recent parallax measurements from the Gaia spacecraft ,[ 2] radial velocity of km/s [ 4]
WASP-159 has a stellar classification of F9 indicating that it is a late F-type star .[ 4] hydrogen fusion at its core and evolving towards the red giant branch .[ 4] Sun's mass and 2.11 times the radius of the Sun .[ 4] luminosity of the Sun [ 2] photosphere at an effective temperature of K [ 4] iron abundance 166% that of the Sun , and it is estimated to be 3.4 billion years old.[ 4]
Planetary system
In 2019, SuperWASP discovered a transiting exoplanet orbiting the star after spectral and radial velocity observations. WASP-159b is a "bloated" hot Jupiter that takes roughly 3.8 days to revolve around its host star in a circular orbit .[ 4]
References
^ Roman, Nancy G. (1987). "Identification of a constellation from a position" . Publications of the Astronomical Society of the Pacific 99 (617): 695. Bibcode :1987PASP...99..695R . doi :10.1086/132034 Constellation record for this object at VizieR .^ a b c d e f g h 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 .^ a b c Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (1 March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics . 355 : L27 – L30 . Bibcode :2000A&A...355L..27H . ISSN 0004-6361 . ^ a b c d e f g h i j k Hellier, Coel; Anderson, D. R.; Bouchy, F.; Burdanov, A.; Collier Cameron, A.; Delrez, L.; Gillon, M.; Jehin, E.; Lendl, M.; Nielsen, L. D.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, B.; Triaud, A. H. M. J.; Udry, S.; West, R. G. (1 January 2019). "New transiting hot Jupiters discovered by WASP-South, Euler/CORALIE, and TRAPPIST-South" . Monthly Notices of the Royal Astronomical Society . 482 (1): 1379– 1391. arXiv :1803.02224 Bibcode :2019MNRAS.482.1379H . doi :10.1093/mnras/sty2741 ISSN 0035-8711 . ^ "WASP-159" . SIMBAD Centre de données astronomiques de Strasbourg .
