Astronomy:WASP-95

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Short description: Star in the constellation Grus
WASP-95
Observation data
Equinox J2000.0]] (ICRS)
Constellation Grus
Right ascension  22h 29m 49.73551s[1]
Declination −48° 00′ 11.0487″[1]
Apparent magnitude (V) 10.09[2]
Characteristics
Spectral type G2[2]
Astrometry
Radial velocity (Rv)6.30±0.16[1] km/s
Proper motion (μ) RA: 92.151(11)[1] mas/yr
Dec.: −6.905(14)[1] mas/yr
Parallax (π)7.2379 ± 0.0157[1] mas
Distance450.6 ± 1.0 ly
(138.2 ± 0.3 pc)
Details[3]
Mass1.110±0.090 M
Radius1.130+0.080
−0.040
 R
Temperature5830±140 K
Metallicity [Fe/H]0.14±0.16 dex
Rotational velocity (v sin i)3.10±0.60 km/s
Age5.0+2.8
−1.8
 Gyr
Other designations
CD−48 14223, CPD−48 10759, TYC 8442-960-1, GSC 08442-00960, 2MASS J22294972-4800111[2]
Database references
SIMBADdata
Extrasolar Planets
Encyclopaedia
data

WASP-95 is a star 451 light-years (138 parsecs) away in the constellation Grus. With an apparent magnitude of 10.1, it is not visible to the naked eye. Its spectral type of G2 means it is a yellow sunlike star.

Planetary system

In 2013, a planet was discovered around WASP-95. The planet, WASP-95b, is a hot Jupiter about 10% more massive than Jupiter, and completes an orbit round its star every two days. It was discovered by its transit of the star in 2013.[4] The planet's equilibrium temperature is 1692.6±40.4 K.[5]

The WASP-95 planetary system[5]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b 1.206+0.065
−0.067
 MJ
0.0312±0.0022 2.18466560(11) <0.018[3] 85.9411+0.0065
−0.0066
°
1.098±0.088 RJ

References

  1. 1.0 1.1 1.2 1.3 1.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  2. 2.0 2.1 2.2 "WASP-95". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=WASP-95. 
  3. 3.0 3.1 Bonomo, A. 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. doi:10.1051/0004-6361/201629882. Bibcode2017A&A...602A.107B. 
  4. Hellier, Coel; Anderson, D. R.; Collier Cameron, A.; Delrez, L. et al. (2013). "Transiting Hot Jupiters from WASP-South, Euler and TRAPPIST: WASP-95b to WASP-101b". Monthly Notices of the Royal Astronomical Society 440 (3): 1982–1992. doi:10.1093/mnras/stu410. Bibcode2014MNRAS.440.1982H. 
  5. 5.0 5.1 Saha, Suman; Sengupta, Sujan (2021), "Critical Analysis of Tess Transit Photometric Data: Improved Physical Properties for Five Exoplanets", The Astronomical Journal 162 (5): 221, doi:10.3847/1538-3881/ac294d, Bibcode2021AJ....162..221S