HATS-3 is an F-type main-sequence star 1,380 light-years (420 parsecs) away. Its surface temperature is 6351 K. HATS-3 is relatively depleted in its concentration of heavy elements, with a metallicity Fe/H index of −0.157, but is slightly younger than the Sun at an age of 3.2 billion years.[1]

A multiplicity survey in 2016 detected a candidate stellar companion to HATS-3, 3.671 arc-seconds away.[2]

Planetary system

In 2013, one planet, named HATS-3b, was discovered on a tight, nearly circular orbit.[1] The planetary orbit of HATS-3b is likely aligned with the equatorial plane of the star, at a misalignment angle of 3°.[3] The planetary equilibrium temperature is 1643 K.[1]

References

  1. ^ Bayliss, D.; Zhou, G.; Penev, K.; Bakos, G. Á.; Hartman, J. D.; Jordán, A.; Mancini, L.; Mohler-Fischer, M.; Suc, V.; Rabus, M.; Béky, B.; Csubry, Z.; Buchhave, L.; Henning, T.; Nikolov, N.; Csák, B.; Brahm, R.; Espinoza, N.; Noyes, R. W.; Schmidt, B.; Conroy, P.; Wright, D. J.; Tinney, C. G.; Addison, B. C.; Sackett, P. D.; Sasselov, D. D.; Lázár, J.; Papp, I.; Sári, P. (2013). "HATS-3b: An Inflated Hot Jupiter Transiting an F-type Star". The Astronomical Journal. 146 (5): 113. arXiv:1306.0624. Bibcode:2013AJ....146..113B. doi:10.1088/0004-6256/146/5/113
  2. ^ Evans, D. F.; Southworth, J.; Maxted, P. F. L.; Skottfelt, J.; Hundertmark, M.; Jørgensen, U. G.; Dominik, M.; Alsubai, K. A.; Andersen, M. I.; Bozza, V.; Bramich, D. M.; Burgdorf, M. J.; Ciceri, S.; d'Ago, G.; Figuera Jaimes, R.; Gu, S.-H.; Haugbølle, T.; Hinse, T. C.; Juncher, D.; Kains, N.; Kerins, E.; Korhonen, H.; Kuffmeier, M.; Mancini, L.; Peixinho, N.; Popovas, A.; Rabus, M.; Rahvar, S.; Schmidt, R. W. et al. (2016). "High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP)". Astronomy & Astrophysics. 589: A58. arXiv:1603.03274. Bibcode:2016A&A...589A..58E. doi:10.1051/0004-6361/201527970. S2CID 14215845
  3. ^ Addison, B. C.; Tinney, C. G.; Wright, D. J.; Bayliss, D. (2014). "A Spin-Orbit Alignment for the Hot Jupiter HATS-3b". The Astrophysical Journal. 792 (2): 112. arXiv:1407.7710. Bibcode:2014ApJ...792..112A. doi:10.1088/0004-637X/792/2/112