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Published January 1, 2018 | Version v1
Journal article Open

KPS-1b: The First Transiting Exoplanet Discovered Using an Amateur Astronomer's Wide-field CCD Data

Creators

  • 1. Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Allee 6 Aout 17, B-4000 Liege, Belgium
  • 2. Acton Sky Portal Private Observ, Acton, MA USA
  • 3. Ural Fed Univ, Ul Mira D 19, Ekaterinburg 620002, Russia
  • 4. Cavendish Lab, Astrophys Grp, JJ Thomson Ave, Cambridge CB3 0HE, England
  • 5. Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France
  • 6. Leiden Observ, Leidenbus 9513, NL-2300 RA Leiden, Netherlands
  • 7. Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
  • 8. Ankara Univ, Dept Astron & Space Sci, Fac Sci, TR-06100 Ankara, Turkey
  • 9. Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Av 3, LT-10257 Vilnius, Lithuania
  • 10. Pulkovo Russian Acad Sci, Cent Astron Observ, Pulkovskoje Shosse D 65, St Petersburg 196140, Russia
  • 11. Russian Acad Sci, Special Astrophys Observ, Nizhnii Arkhyz 369167, Russia
  • 12. Univ Siena, Astron Observ DSFTA, Via Roma 56, I-53100 Siena, Italy
  • 13. Baronnies Provenc Observ, Hautes Alpes Parc Nat Reg Baronnies Prov, F-05150 Moydans, France

Description

We report the discovery of the transiting hot Jupiter KPS-1b. This exoplanet orbits a V = 13.0 K1-type main-sequence star every 1.7. days, has a mass of 1.090(-0.087)(+0.086) M-Jup and a radius of 1.03(-0.12)(+0.13) R-Jup. The discovery was made by the prototype Kourovka Planet Search (KPS) project, which used wide-field CCD data gathered by an amateur astronomer using readily available and relatively affordable equipment. Here we describe the equipment and observing technique used for the discovery of KPS-1b, its characterization with spectroscopic observations by the SOPHIE spectrograph and with high-precision photometry obtained with 1 m class telescopes. We also outline the KPS project evolution into the Galactic Plane eXoplanet survey. The discovery of KPS-1b represents a new major step of the contribution of amateur astronomers to the burgeoning field of exoplanetology.

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