WASP-5

WASP-5 is a magnitude 12 G-type main-sequence star located about 1,020 light-years (310 parsecs) away in the Phoenix constellation.^[2] The star is likely older than the Sun, slightly enriched in heavy elements and is rotating rapidly, being spun up by the tides raised by the giant planet on a close orbit.^[5]

WASP-5

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Phoenix
Right ascension	23h 57m 23.75647s[1]
Declination	−41° 16′ 37.7437″[1]
Apparent magnitude (V)	12.146[2]
Characteristics
Evolutionary stage	Main sequence
Spectral type	G4V[3]
Apparent magnitude (B)	12.808±0.02[2]
Apparent magnitude (V)	12.146±0.01[2]
Apparent magnitude (J)	10.949±0.022[2]
Apparent magnitude (H)	10.650±0.025[2]
Apparent magnitude (K)	10.598±0.023[2]
Astrometry
Radial velocity (Rv)	20.49±0.67[1] km/s
Proper motion (μ)	RA: 7.406(14) mas/yr[1] Dec.: −16.072(14) mas/yr[1]
Parallax (π)	3.1883 ± 0.0150 mas[1]
Distance	1,023 ± 5 ly (314 ± 1 pc)
Details[4]
Mass	1.033±0.045 M☉
Radius	1.088±0.040 R☉
Temperature	5770±65 K
Metallicity [Fe/H]	0.090±0.090 dex
Rotation	16.20±0.40 d
Rotational velocity (v sin i)	3.40±0.70 km/s
Age	5.84±1.86[5] Gyr
Other designations
TOI-250, TIC 184240683, WASP-5, GSC 08018-00199, 2MASS J23572375-4116377, DENIS J235723.7-411637, UCAC2 14323784[2]
Database references
SIMBAD	data

Planetary system

This star has one exoplanet, WASP-5b, detected by the SuperWASP project in 2007.^[3]

The WASP-5 planetary system^[4]

Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	1.590+0.053 −0.052 MJ	0.02739±0.00039	1.62842953(52)	<0.012	85.8±1.1°	1.175±0.056 RJ

See also

• SuperWASP
• WASP-4
• WASP-3
• List of extrasolar planets

References

1. 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. "WASP-5". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 14 December 2023.
3. Anderson, D.R.; Gillon, M.; Hellier, C.; Maxted, P. F. L.; Pepe, F.; Queloz, D.; Wilson, D. M.; Collier Cameron, A.; Smalley, B.; Lister, T. A.; Bentley, S. J.; Blecha, A.; Christian, D. J.; Enoch, B.; Hebb, L.; Horne, K.; Irwin, J.; Joshi, Y. C.; Kane, S. R.; Marmier, M.; Mayor, M.; Parley, N. R.; Pollacco, D. L.; Pont, F.; Ryans, R.; Ségransan, D.; Skillen, I.; Street, R. A.; Udry, S.; et al. (2008). "WASP-5b: a dense, very hot Jupiter transiting a 12th-mag Southern-hemisphere star". Monthly Notices of the Royal Astronomical Society: Letters. 387 (1): L4 – L7. arXiv:0801.1685. Bibcode:2008MNRAS.387L...4A. doi:10.1111/j.1745-3933.2008.00465.x. S2CID 36741190.
4. Bonomo, A. S.; Desidera, S.; et al. (June 2017). "The GAPS Programme with HARPS-N at TNG. XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy & Astrophysics. 602: A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882. S2CID 118923163.
5. Maxted, P. F. L.; Serenelli, A. M.; Southworth, J. (2015), "A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars", Astronomy & Astrophysics, 577: A90, arXiv:1503.09111, Bibcode:2015A&A...577A..90M, doi:10.1051/0004-6361/201525774, S2CID 53324330

External links

• UK planet hunters announce three new finds (PDF)
• SuperWASP Homepage
• "WASP-5". Exoplanets. Archived from the original on 2016-03-03. Retrieved 2009-05-04.