Planet WASP-47 b

Name WASP-47 b
Planet Status Confirmed
Discovered in 2012
Mass 1.14243 ( -0.02297 +0.02297 ) MJ
Mass*sin(i) +
Semi-Major Axis 0.052 (± 0.011) AU +
Orbital Period 4.1591289 ( -4.2e-06 +4.2e-06 ) day
Eccentricity 0.0028 (± 0.0028) +
ω 51.0 (± 82.0) deg +
Tperi 2455764.3463 (± 0.0002) JD
Radius 1.127 ( -0.013 +0.013 ) RJ
Inclination 88.98 ( -0.2 +0.2 ) deg
Update 2021-02-05
Detection Method Primary Transit
Mass Detection Method Radial Velocity
Radius Detection Method Primary Transit
Primary transit 2456982.97823 (± 0.00032) JD +
Secondary transit
λ
Impact Parameter b 0.173 ( -0.032 +0.032 )
Time Vr=0
Velocity Semiamplitude K 140.64 ( -0.44 +0.44 ) m/s
Calculated temperature 1275.0 K
Measured temperature
Hottest point longitude
Geometric albedo
Surface gravity log(g/gH)
Alternate Names 1SWASP J220448.72-120107.8 b, 2MASS J22044873-1201079 b, EPIC 206103150.01, K2-23 b, WISE J220448.74-120108.4 b

Star

WASP-47
Name WASP-47
Distance 266.69 ( -4.83 +4.83 ) pc
Spectral type G9V
Apparent magnitude V 11.9
Mass 1.04 ( -0.03 +0.03 ) MSun
Age
Effective temperature 5552.0 ( -75.0 +75.0 ) K
Radius 1.14 ( -0.01 +0.01 ) RSun
Metallicity [Fe/H] 0.38 ( -0.05 +0.05 )
Detected Disc
Magnetic Field
RA2000 22:04:48.7
Dec2000 -12:01:08
Alternate Names 1SWASP J220448.72-120107.8, 2MASS J22044873-1201079, EPIC 206103150, K2-23, WISE J220448.74-120108.4
Planetary system
4 planets

Remarks

Alias 2MASS J220448.72-120107.8

Other web-pages

Papers with primary data:

More data

AMD-Stability Calculator for the System


Related publications

The Chemical link between stars and their rocky planets
2021 ADIBEKYAN V., DORN C., SOUSA S., SANTOS N., BITSCH B. et al.
Science, submitted
arxiv

The Dark Planets of the WASP-47 Planetary System
2020 KANE S., FETHEROLF T. & HILL M.
Astron. J., 159, 176
paper   arxiv  

Hiding Planets Behind a Big Friend: Mutual Inclinations of Multi-Planet Systems with External Companions
2017 LAI D. & PU B.
Astron. J., 153, 42
paper  arxiv  ADS  

Precise Masses in the WASP-47 System
2017 VANDERBURG A., BECKER J., BUCHHAVE L., MORTIER A., LOPEZ E. et al.
Astron. J., 154, 237
paper  arxiv  

New Insights on Planet Formation in WASP-47 from a Simultaneous Analysis of Radial Velocities and Transit Timing Variations
2017 WEISS L., DECK K., SINUKOFF E., PETIGURA E., AGOL E. et al.
Astron. J., 153, 265
paper  arxiv  

The Planetary Mass-Radius Relation and its Dependence on Orbital Period as Measured by Transit Timing Variations and Radial Velocities
2017 MILLS S. & MAZEH T.
ApJ. Letters, 839, L8
paper  arxiv  ADS

Exterior Companions to Hot Jupiters Orbiting Cool Stars are Coplanar
2017 BECKER J., VANDERBURG A., ADAMS F. & BRYAN M.
Astron. J., 154, 230
paper  arxiv  

Absolute densities, masses, and radii of the WASP-47 system determined dynamically
2016 ALMENARA J., DIAZ R., BONFILS X. & UDRY S.
Astron. & Astrophys., 595, L5
paper  arxiv  ADS  

Hot Jupiters with relatives: discovery of additional planets in orbit around WASP-41 and WASP-47
2016 NEVEU-VANMALLE M., QUELOZ D., ANDERSON D., BROWN D., COLLIER CAMERON A. et al.
Astron. & Astrophys., 586, A93
paper  arxiv  ADS  

On the formation of compact planetary systems via concurrent core accretion and migration
2016 COLEMAN G. & NELSON R.
MNRAS, 457, 2480
paper  arxiv  ADS

Warm Jupiters are less lonely than hot Jupiters: close neighbours
2016 HUANG Ch., WU Y. & TRIAUD A.
ApJ, 825, 98
paper  arxiv  ADS  

WASP-47: A Hot Jupiter System with Two Additional Planets Discovered by K2
2015 BECKER, J., VANDERBURG, ADAMS, F., RAPPAPORT, S. & H. SCHWENGELER
ApJL, 812, L18
paper  arxiv  ADS

A low stellar obliquity for WASP-47, a compact multiplanet system with a hot Jupiter and an ultra-short period planet
2015 SANCHIS-OJEDA R., WINN J., DAI F., HOWARD A., ISAACSON H. et al.
ApJ Letters, 812, L11
paper  arxiv  ADS  

Doppler Monitoring of the WASP-47 Multiplanet System
2015 DAI F., WINN J., ARRIAGADA P., BUTLER P., CRANE J. et al.
ApJ Letters, 813, L9
paper  arxiv  ADS

A Uniformly Derived Catalogue of Exoplanets from Radial Velocities
2012 HOLLIS M., BALAN S., LEVER G. & LAHAV O.
MNRAS, 423, Issue 3, 2800-2814
paper  arxiv

Seven transiting hot-Jupiters from WASP-South, Euler and TRAPPIST: WASP-47b, WASP-55b, WASP-61b, WASP-62b, WASP-63b, WASP-66b & WASP-67b
2012 HELLIER C., ANDERSON D., COLLIER CAMERON A., DOYLE A., GILLON M. & 13 additional authors
MNRAS
arxiv

The Exoplanet Handbook
2011 Michael Perryman
Content
Content and Chapter 5

Status of the WASP-South Search for Transiting Planets
2011 HELLIER C.