TOI-1338 b

TOI-1338 b Image

Description: TOI-1338 b is a gas giant circumbinary exoplanet in the constellation Pictor, orbiting around the binary star system TOI-1338. First identified by then-17-year-old Wolf Cukier, it was the first circumbinary planet discovered by the Transiting Exoplanet Survey Satellite (TESS). It was discovered on 31 July 2019, and announced 6 January 2020.

Physical Properties

Mass (Jupiter mass): 0.0355 MJ

Radius (Jupiter radius): 0.683 RJ

Density: 0.36 g/cm³

Equilibrium Temperature: 254.652504802 K

Orbital Parameters

Orbital Period: 95.4001 days

Semi-major Axis: 0.4607 AU

Eccentricity: 0.0331

Inclination: 90.494°

Host Star Properties

Host Star: TOI-1338 A

Spectral Type: F8

Temperature: 5723.2 K

Stellar Mass: 1.09 M☉

Stellar Radius: 1.31 R☉

Discovery Information

Planet Letter: b

Object ID: 3.12532

Host ID: 2.104403

Discovery Date: 2020-06

Discovery Year: 2020

Discovery Method: Transit

Discovery Locale: Space

Discovery Facility: Transiting Exoplanet Survey Satellite (TESS)

Discovery Instrument: TESS CCD Array

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