WASP-34

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HD 98219
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Crater
Right ascension 11h 01m 35.8979s[1]
Declination –23° 51′ 38.385″[1]
Apparent magnitude (V) +10.28[2]
Characteristics
Spectral type G5[3]
Astrometry
Proper motion (μ) RA: –43.900 ± 0.069[1] mas/yr
Dec.: –65.794 ± 0.069[1] mas/yr
Parallax (π)7.5418 ± 0.0484[1] mas
Distance432 ± 3 ly
(132.6 ± 0.9 pc)
Details
Mass1.01[3] M☉
Radius0.93[3] R☉
Luminosity1.19[4] L☉
Surface gravity (log g)4.5[3] cgs
Temperature5,700[3] K
Metallicity [Fe/H]−0.02[3] dex
Rotational velocity (v sin i)0.5[5] km/s
Age6.80[4] Gyr
Other designations
CD-23 9677, DENIS J110135.9-235138, GSC 06636-00540, 2MASS J11013589-2351382, TYC 6636-540-1, Gaia DR2 3537110833333561728[1]
Database references
SIMBADdata

WASP-34, also named Amansinaya,[6] is a sunlike star of spectral type G5V that has 1.01 ± 0.07 times the mass and 0.93 ± 0.12 times the diameter of the Sun. It rotates on its axis every 34 ± 15 days, indicating it is around 6.7 billion years old.[3]

Planetary system[]

It has a planet 0.59 ± 0.01 times as massive as Jupiter that takes 4.317 days to complete an orbit.[3] Planetary color was found to be redder than usual, hinting on peculiar chemistry. The measured planetary dayside temperature is 1257±109 K.[7]

There is increasing evidence that there is a massive object orbiting the system further out.[citation needed]

The WASP-34 planetary system
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
b 0.56 MJ 0.0524 4.31768 0[7] — 1.22±0.08[7] RJ
(unconfirmed) — — — — — —

Naming[]

In 2019 the IAU announced as part of NameExoWorlds that WASP-34 and its planet WASP-34b would be given official names chosen by school children from The Philippines.[8][9] The star is named Amansinaya, after , which is one of the two trinity deities of the Philippine's Tagalog mythology, and is the primordial deity of the ocean and protector of fisherman. The planet WASP-34b is named Haik. Haik is the successor of the primordial Aman Sinaya as the god of the sea of the Philippine's Tagalog mythology.[6]

References[]

  1. ^ Jump up to: a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode:2000A&A...355L..27H.
  3. ^ Jump up to: a b c d e f g h Smalley, B.; Anderson, D. R.; Collier Cameron, A.; Hellier, C.; Lendl, M.; Maxted, P. F. L.; Queloz, D.; Triaud, A. H. M. J.; West, R. G.; Bentley, S. J.; Enoch, B.; Gillon, M.; Lister, T. A.; Pepe, F.; Pollacco, D.; Segransan, D.; Smith, A. M. S.; Southworth, J.; Udry, S.; Wheatley, P. J.; Wood, P. L.; Bento, J. (2011). "WASP-34b: a near-grazing transiting sub-Jupiter-mass exoplanet in a hierarchical triple system". Astronomy and Astrophysics. 526: 5. arXiv:1012.2278. Bibcode:2011A&A...526A.130S. doi:10.1051/0004-6361/201015992. S2CID 43519917. A130.
  4. ^ Jump up to: a b Bonfanti, A.; Ortolani, S.; Nascimbeni, V. (2016). "Age consistency between exoplanet hosts and field stars". Astronomy and Astrophysics. 585: A5. arXiv:1511.01744. Bibcode:2016A&A...585A...5B. doi:10.1051/0004-6361/201527297. S2CID 53971692.
  5. ^ Brewer, John M.; Fischer, Debra A.; Valenti, Jeff A.; Piskunov, Nikolai (2016). "Spectral Properties of Cool Stars: Extended Abundance Analysis of 1,617 Planet-search Stars". The Astrophysical Journal Supplement Series. 225 (2): 32. arXiv:1606.07929. Bibcode:2016ApJS..225...32B. doi:10.3847/0067-0049/225/2/32. S2CID 118507965.
  6. ^ Jump up to: a b "Approved names". NameExoworlds. Retrieved 2020-01-02.
  7. ^ Jump up to: a b c Challener, Ryan C.; Harrington, Joseph; Cubillos, Patricio E.; Blecic, Jasmina; Smalley, Barry (2021), Spitzer Dayside Emission of WASP-34b, arXiv:2108.04101
  8. ^ "NameExoWorlds". 2019. Retrieved 6 September 2019.
  9. ^ "Naming". 2019. Retrieved 6 September 2019.

External links[]

Coordinates: Sky map 11h 01m 35.8979s, −23° 51′ 38.385″


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