A dataset provided by the European Space Agency

Obs ID 1506172
Target/Line-of-sight K2-139
Gaia DR2 ID Gaia DR2 4084602654011029376
URL https://cheops.unige.ch/archive_browser/?visit-id=1506172
DOI https://doi.org/10.5270/esa-zlvnj6s
Author European Space Agency
Description of observation
  • Target RA (J2000): 289.066528 °
  • Target Dec (J2000): -17.91069 °
  • Gaia GMag: 11.463

  • Programme ID: CH_PR210005
  • PI of observing programme: Smith
  • Title of programme: Measuring the orbital obliquity of the warm Jupiter K2-139b
  • Abstract: We will use CHEOPS to measure four transits of the warm Jupiter K2-139b across the face of its host star, K2-139. K2-139 is an active K0V star, and has previously been observed to exhibit significant star spots. By measuring anomalies in the light curves caused by the planet crossing stellar spots during transit, we will measure the spin-orbit angle (obliquity), that is the angle between the stellar spin axis, and the planetary orbital axis, for the K2-139 system. Spin-orbit angles offer a crucial piece of observational evidence, vital for understanding planetary migration and evolution.
Temporal Coverage 2021-06-03T14:53:00Z / 2021-06-04T02:25:00Z
Version 3.0
Mission Description CHEOPS (Benz et al., https://doi.org/10.1007/s10686-020-09679-4) is a European Space Agency (ESA) mission in partnership with Switzerland with important contributions to the payload and the ground segment from Austria, Belgium, France, Germany, Hungary, Italy, Portugal, Spain, Sweden and the United Kingdom.

The satellite has a single payload comprising an ultra-high precision photometer covering the 330 - 1100 nm wavelength range in a single photometric band. Observations are made as part of the Guaranteed Time Observing Programme that is formulated by the CHEOPS Science Team, and the Guest Observers Programme through which the Community at large can apply for CHEOPS time.
Creator Contact https://www.cosmos.esa.int/web/cheops/contact
Date Published 2024-10-31T19:59:17Z
Keywords CHEOPS, EXOPLANETS, wide-band photometer
Acknowledgements https://www.cosmos.esa.int/web/cheops-guest-observers-programme/publication-guidelines
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2024, 'K2-139', 3.0, European Space Agency, https://doi.org/10.5270/esa-zlvnj6s