Planet TOI-849 b

Name TOI-849 b
Planet Status Confirmed
Discovered in 2020
Mass 0.12299 ( -0.00802 +0.00837 ) MJ
Mass*sin(i)
Semi-Major Axis 0.01598 ( -0.00014 +0.00013 ) AU
Orbital Period 0.76552414 ( -2.79e-06 +2.62e-06 ) day
Eccentricity 0.0 (± 0.0)
ω 360.0 (± 0.0) deg
Tperi
Radius 0.30726 ( -0.01026 +0.01401 ) RJ
Inclination 86.8 ( -2.4 +2.1 ) deg
Update 2021-03-30
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2458394.73768 ( -0.00099 +0.00091 ) JD
Secondary transit
λ
Impact Parameter b 0.212 ( -0.14 +0.145 )
Time Vr=0
Velocity Semiamplitude K 28.64 ( -0.00182 +0.00187 ) m/s
Calculated temperature 1800.0 K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names

Star

TOI-849
Name TOI-849
Distance 225.2 ( -5.8 +6.1 ) pc
Spectral type G
Apparent magnitude V 11.98
Mass 0.929 (± 0.023) MSun
Age 6.7 ( -2.4 +2.8 ) Gyr
Effective temperature 5375.3 ( -41.4 +41.8 ) K
Radius 0.919 ( -0.022 +0.031 ) RSun
Metallicity [Fe/H] 0.19 (± 0.03)
Detected Disc
Magnetic Field
RA2000 01:54:51.8
Dec2000 -29:25:18
Alternate Names TIC 33595516
Planetary system 1 planet

More data

Observability Predictor

Remarks

Armstrong et al. (2020) : TOI-489 b is probably a remnant planetary core. The equilibrium telmperature is computed assuming an albedo of 0.3.

Related publications

The key impact of the host star's rotational history on the evolution of TOI-849b
2021 PEZZOTTI C., ATTIA O., EGGENBERGER P., BULDGEN G. & BOURRIER V.
Astron. & Astrophys., in press
paper  

A remnant planetary core in the hot Neptunian desert
2020 ARMSTRONG D., LOPEZ Th., ADIBEKYAN V., BOOTH R., BRYANT E. et al.
Nature, 583, 39
paper   arxiv