Planet DS Tuc A b

Name DS Tuc A b
Planet Status Confirmed
Discovered in 2019
Mass 0.088 ( -0.041 +0.11 ) MJ
Mass*sin(i)
Semi-Major Axis 0.0795 (± 0.003) AU +
Orbital Period 8.138268 (± 1e-05) day +
Eccentricity
ω
Tperi
Radius 0.5085 (± 0.0152) RJ +
Inclination 89.5 ( -0.34 +0.41 ) deg
Update 2020-06-06
Detection Method Primary Transit
Mass Detection Method Theoretical
Radius Detection Method Primary Transit
Primary transit 2458832.30997 (± 0.00026) JD +
Secondary transit
λ
Impact Parameter b 0.4 ( -0.08 +0.07 )
Time Vr=0
Velocity Semiamplitude K
Calculated temperature
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names HD 222259 A b, TIC 4102214986 b

Star

DS Tuc A
Name DS Tuc A
Distance 44.12 (± 0.06) pc
Spectral type G6V
Apparent magnitude V 9.0
Mass 0.959 (± 0.031) MSun
Age 0.04 (± 5.0) Gyr +
Effective temperature 5597.0 ( -59.0 +28.0 ) K
Radius 0.872 (± 0.027) RSun
Metallicity [Fe/H] -0.08 (± 0.06)
Detected Disc
Magnetic Field
RA2000 23:39:40.0
Dec2000 -69:11:45
Alternate Names
Planetary system 1 planet

Remarks

27 March 2020 DS Tuc A has a 0.84 MSun companion at 5,364 mas (Pearce et al. 2020 arxiv)

More data


Related publications

A search for young exoplanets in Sectors 1-5 of the TESS Full-Frame-Images
2020 BATTLEY M., POLLACCO D. & ARMONSTRONG D.
MNRAS, 496, 1197
paper   arxiv

A possibly inflated planet around the bright, young star DS Tuc A
2019 BENATTI S., NARDIELLO D., MALAVOLTA L., DESIDERA S., BORSATO L. et al.
Astron. & Astrophys., 630, A81
paper  arxiv  

TESS Hunt for Young and Maturing Exoplanets (THYME): A planet in the 45 Myr Tucana-Horologium association
2019 NEWTON E., MANN A., TOFFLEMIRE B., PEARCE L., RIZZUTO A. et al.
ApJ. Letters, 880, L17
paper  arxiv  

A well aligned orbit for the 45 Myr old transiting Neptune DS Tuc Ab
2019 ZHOU G., WINN J., NEWTON E., QUINN S., RODRIGUEZ J. et al.
ApJ. Letters, submitted
arxiv  

The Young Planet DS Tuc Ab has a Low Obliquity
2019 MONTET B., FEINSTEIN A., LUGER R., BEDELL M., GULLY-SANTIAGO M. et al.
Astron. J., 159, 112
paper  arxiv