Astronomy:WASP-96

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Short description: Star in the constellation Phoenix
WASP-96
Observation data
Equinox J2000.0]] (ICRS)
Constellation Phoenix
Right ascension  00h 04m 11.13768s[1]
Declination −47° 21′ 38.3208″[1]
Apparent magnitude (V) 12.2[2]
Characteristics
Evolutionary stage Main sequence
Spectral type G8[2]
Astrometry
Radial velocity (Rv)−1.10±0.50[1] km/s
Proper motion (μ) RA: 25.594[1] mas/yr
Dec.: 2.192[1] mas/yr
Parallax (π)2.8590 ± 0.0154[1] mas
Distance1,141 ± 6 ly
(350 ± 2 pc)
Details[2]
Mass1.06±0.09 M
Radius1.05±0.05 R
Surface gravity (log g)4.42±0.02 cgs
Temperature5540±140 K
Metallicity [Fe/H]+0.14±0.19 dex
Rotational velocity (v sin i)1.5±1.3 km/s
Age9.4+3.3
−2.9
[3] Gyr
Other designations
2MASS J00041112-4721382[4]
Database references
SIMBADdata
Exoplanet Archivedata

WASP-96 is a G8-type star, located approximately 1140 light-years from Earth in the constellation of Phoenix.

It is known to host at least one exoplanet, WASP-96b. It was discovered in 2013 by the Wide Angle Search for Planets (WASP), utilising the transit method.[2] In July 2022, NASA announced that a spectrum of the planet would be featured in the initial science release from the James Webb Space Telescope.[5][6]

Planetary system

Observations from the James Webb Space Telescope show that WASP-96b displays a distinct signature of water, along with evidence for clouds and haze in its spectrum,[7] in contrast to what was previously believed to be an entirely cloudless atmosphere.[8][9]

The WASP-96 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b 0.490+0.049
−0.047
 MJ
0.0454±0.0013 3.4252602(27) <0.11 85.60±0.20° 1.20±0.06 RJ

See also

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 2.3 Hellier, Coel; Anderson, D. R.; Cameron, A. Collier; Delrez, L.; Gillon, M.; Jehin, E.; Lendl, M.; Maxted, P. F. 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 
  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. "WASP-96". http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=WASP-96. 
  5. "Exoplanet-catalog - Exoplanet Exploration: Planets Beyond our Solar System". https://exoplanets.nasa.gov/exoplanet-catalog/5152/wasp-96-b/. 
  6. Garner, Rob (2022-07-08). "NASA Shares List of Cosmic Targets for Webb Telescope's 1st Images". http://www.nasa.gov/feature/goddard/2022/nasa-shares-list-of-cosmic-targets-for-webb-telescope-s-first-images. 
  7. "Webb Reveals Steamy Atmosphere of Distant Planet in Exquisite Detail" (in en). https://webbtelescope.org/contents/news-releases/2022/news-2022-032. 
  8. Jorgenson, Amber (May 8, 2018). "WASP-96b: the cloudless exoplanet" (in en). https://astronomy.com/news/2018/05/the-cloudless-exoplanet. 
  9. McGruder, Chima D.; López-Morales, Mercedes; Kirk, James; Espinoza, Néstor; Rackham, Benjamin V.; Alam, Munazza K.; Allen, Natalie; Nikolov, Nikolay et al. (2022), "ACCESS: Confirmation of a Clear Atmosphere for WASP-96b and a Comparison of Light Curve Detrending Techniques", The Astronomical Journal 164 (4): 134, doi:10.3847/1538-3881/ac7f2e, Bibcode2022AJ....164..134M 

Coordinates: Sky map 00h 04m 11.1377s, −47° 21′ 38.3208″