IPAC Logo
NASA
Exoplanet
Archive
A
service of
NASA
Exoplanet
Science
Institute

WASP-77 Overview

WASP-77 A 1.09 R⦿ 5500.00 K
WASP-77 A b
WASP-77 B 4810.00 K

WASP-77 Architecture & Discovery Information

Name Orbital Separation Planet Size Method Year Reference Disposition
WASP-77 A
WASP-77 A b 1.36 d 529.31 M⨁ Transit 2012 Maxted et al. 2013 Confirmed Planet
WASP-77 B
WASP-77
  • This reference contains discussion regarding the stellar multiplicity of this system. (Maxted et al. 2013)
  • This reference contains discussion regarding the stellar multiplicity of this system. (Mugrauer 2019)
RA
02h28m37.33s
Dec
-07d03m38.40s
Distance
105.166+1.209-1.182
pc
Parallax
9.481820±0.107266 mas
Ecliptic Latitude
-20.56103 deg
Ecliptic Longitude
32.34906 deg
Galactic Latitude
-59.43598 deg
Galactic Longitude
176.35044 deg
Total Proper Motion
93.9016729±0.1287953 mas/yr
Proper Motion (RA)
93.888600±0.128767 mas/yr
Proper Motion (Dec)
-1.566830±0.206734 mas/yr
Photometry
mV
10.294±0.007
mTESS
9.62713±0.00670
mJ
8.766±0.020
mH
8.374±0.040
mKs
8.405±0.031
mW1
8.106±0.022
mW2
8.162±0.019
mW3
8.177±0.020
mW4
8.089±0.210
mGaia
10.09660±0.00158
mB
11.073±0.104
mg
12.9972000±0.0028179
mi
11.4129000±0.0015897
mr
11.7970000±0.0010792
mu
13.9531000±0.0059419
mz
12.4989000±0.0110875
Abundances
(Hypatia Catalog)
[Fe/H] 0.04±0.22 dex
[C/H] 0.03±0.10 dex
[O/H] -0.04±0.04 dex
[Na/H] -0.17±0.15 dex
[Mg/H] -0.01±0.10 dex
[Al/H] 0.03±0.11 dex
[Si/H] -0.02±0.06 dex
[Ca/H] 0.06±0.04 dex
[Y/H] 0.01±0.08 dex
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
TOI
Stellar Hosts
Source Yalçınkaya et al. 2024 Cortés-Zuleta et al. 2020 TICv8 Gaia DR2 Bonomo et al. 2017 Stassun et al. 2017 Turner et al. 2016 Salz et al. 2015 Mortier et al. 2013 Maxted et al. 2013 ExoFOP
Teff
(K)
5500±80 5617±72
5605.000+114.833-106.573
5556.0+127.5-86.0
 5500±80 5365±160 5500 5500 5605±41 5500±80 5500
Metallicity
(dex)
---
-0.10+0.10-0.11
[Fe/H] 		0.07±0.03 [M/H] --- 0.0±0.1 -0.34 [Fe/H] 0.0 [Fe/H] --- 0.07±0.03 [Fe/H] 0.00±0.11 [Fe/H] ---
ρ✶
(g/cm3)
---
1.692+0.056-0.069
1.7148845+0.4450638-0.2605486
 --- --- 1.64±0.11 --- --- 1.16±0.02
1.630 +0.023-0.028
---
M✶
(M⦿)
---
0.903+0.066-0.059
0.9910000+0.1647680-0.0766240
 --- 1.002±0.045 1.49±0.32 --- --- 0.96±0.07 1.002±0.045 ---
R✶
(R⦿)
---
0.910+0.025-0.023
0.9339750+0.0337523-0.0520769
0.9473269+0.0300221-0.0420267
 0.955±0.015 1.09±0.07 --- --- 1.09±0.14 0.955±0.015 0.933974981307983±0.042914600000000
log g
(log10(cm/s2))
---
4.476+0.014-0.015
4.4934700+0.0872362-0.0595629
 --- --- 4.33±0.08 4.33 --- 4.37±0.09 4.33±0.08 4.48298
v sin i
(km/s)
--- --- --- --- 4.00±0.20 --- --- --- --- 4.0±0.2 ---
Age
(Gyr)
---
6.20+4.00-3.50
 --- ---
5.8+2.9-1.8
 --- --- 1.7 ---
1.0 +0.5-0.3
---
Prot
(days)
--- --- --- --- 15.40±0.40 --- --- --- --- --- ---
Sp. T
--- --- --- --- --- --- --- G8 V --- G8 V ---
γ
(km/s)
--- --- --- --- --- --- --- --- --- 1.6845±0.0004 ---
L✶
(log10(L⦿))
---
-0.129+0.036-0.035
-0.1103325+0.0146848-0.0167299
-0.11325658+0.00585532-0.00593534
 --- --- --- --- --- --- ---
Print
Status
Confirmed Planet
Detected By
Radial Velocity, Transit
Tools
Planetary Systems
Transit Prediction Service
TOI
Transit
NExoList: JWST
Atmospheric Spectroscopy
Source Noguer et al. 2024 Yalçınkaya et al. 2024 Kokori et al. 2023 Ivshina & Winn 2022 Kokori et al. 2022 Cortés-Zuleta et al. 2020 Bonomo et al. 2017 Stassun et al. 2017 Turner et al. 2016 Salz et al. 2015 Maxted et al. 2013 ExoFOP
P
(days)
1.360029395±0.000000057 1.360028898±0.000000050 1.360028949±0.000000075 1.36002869±0.00000016 1.36002922±0.00000013 1.36002854±0.00000062 1.3600309±0.0000020 1.360030±0.000002 1.3600306±0.0000012 1.4 1.3600309±0.0000020 1.36002827981971±0.00000020811382
TC
(days)
2459957.337860±0.000043
(BJD-TDB)
2458410.984807±0.000028
(BJD-TDB)
2458693.870688±0.000039
(BJD-TDB)
2457658.88890±0.00014
(BJD-TDB)
2456663.34757±0.00012
(BJD-TDB)
2457420.88439+0.00080-0.00085
(BJD-TDB)
2455870.45054±0.00014
(BJD-TDB)
--- 2455870.44977±0.00014
(BJD)
--- 2455870.44977±0.00014
(BJD)
2459168.5208490±0.0000556
(BJD)
Teq
(K)
--- --- --- --- ---
1715+26-25
 --- --- 1674±24 1650 --- 1544.01469919902
Mp
(M⨁)
529.311±0.143 --- --- --- ---
529.8+21.6-20.3
560.3+17.5-17.2
 728±105 559.4±18.1 572.1 559.36±19.07 ---
Mp
(MJup)
1.66540±0.00045 --- --- --- ---
1.667+0.068-0.064
1.763+0.055-0.054
 2.29±0.33 1.760±0.057 1.8 1.76±0.06 ---
e
0.01353±0.00060 --- --- --- ---
0.00740+0.00690-0.00490
 <0.0075 0.0 0 0 0 ---
ρ
(g/cm3)
--- --- --- --- ---
1.115+0.052-0.062
1.234+0.073-0.070
 --- 1.234±0.073 1.3 1.33±0.04 ---
Rp
(R⨁)
--- --- --- --- ---
13.79+0.35-0.33
 13.56±0.22 15.5±1.0 13.6±0.2 13.5 13.56±0.22 13.0911812605723±0.6022820500000
Rp
(RJup)
--- --- --- --- ---
1.230+0.031-0.029
 1.210±0.020 1.38±0.09 1.21±0.02 1.2 1.21±0.02 1.16791897594866±0.05373209804884
a
(au)
0.023233633±0.000000037 --- --- --- ---
0.02335+0.00045-0.00043
 0.02405±0.00036 --- 0.02396±0.00043 0.024 0.0240±0.00036 ---
a/R✶
5.4900859±0.0000086 --- 5.41±0.04 --- ---
5.332+0.057-0.081
 --- 5.43±0.12 --- --- --- ---
i
(deg)
89.99±0.10 ---
89.4+0.4-0.7
 --- ---
88.91+0.74-0.95
89.40+0.40-0.70
 89.40±0.55 89.40±0.70 ---
89.4 +0.4-0.7
 ---
K
(m/s)
327.21±0.88 --- --- --- ---
323.4+3.8-3.4
322.9+2.6-2.3
 321.9±3.9 --- --- --- ---
δ
(%)
--- --- --- --- ---
1.783+0.020-0.019
 --- 1.700±0.017 --- --- 1.693±0.017 1.94276944703414±0.00466142700000
b
--- --- --- --- ---
0.109+0.089-0.071
 --- --- --- ---
0.06 +0.07-0.05
 ---
S
(S⨁)
--- --- --- --- ---
1440+90-80
 --- --- --- --- --- 1343.15682727954
ω
(deg)
-88.29±0.24 --- --- --- ---
-166+66-75
 --- --- --- --- --- ---
Mp sin i
(M⨁)
--- --- --- --- ---
529.8+21.6-20.3
 --- --- --- --- --- ---
Mp sin i
(MJup)
--- --- --- --- ---
1.667+0.068-0.064
 --- --- --- --- --- ---
Rp/R✶
0.117026±0.000069 --- 0.1301±0.0007 --- ---
0.13354+0.00074-0.00070
 --- --- 0.13012±0.00065 --- --- ---
T14
(hours)
--- --- --- --- ---
2.148+0.013-0.012
 --- --- --- --- 2.16000±0.00840 2.16527507554805±0.00512344060000
Print
RA
02h28m37.42s
Dec
-07d03m41.34s
Distance
105.405+0.635-0.629
pc
Parallax
9.4588200±0.0564441 mas
Ecliptic Latitude
-20.56193 deg
Ecliptic Longitude
32.34917 deg
Galactic Latitude
-59.43626 deg
Galactic Longitude
176.35214 deg
Total Proper Motion
94.2295663±0.0698234 mas/yr
Proper Motion (RA)
94.1606000±0.0698199 mas/yr
Proper Motion (Dec)
-3.6045200±0.0721583 mas/yr
Photometry
mV
---
mTESS
11.4056±0.6000
mJ
---
mH
---
mKs
---
mW1
---
mW2
---
mW3
---
mW4
---
mGaia
11.835600±0.000429
mB
---
mg
---
mi
---
mr
---
mu
---
mz
---
Tools
Planetary Systems
ExoFOP Target Overview Page
IRSA Finding Chart
Stellar Hosts
Source Evans et al. 2016
Teff
(K)
4810±100
Sp. T
K5
Print
Literature Time Series (1 File Type, 2 Files)
File Type Data Points Filter Reference
Radial Velocity Curve     11 Optical Spectra Maxted et al. 2013
Radial Velocity Curve     8 Optical Spectra Maxted et al. 2013
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
Known Objects
1 Confirmed Planets
1 2MASS Point Source Catalog
Data Files
1 Associated Literature Data
  • System
  • Star
  • Confirmed
  • Candidate
  • False Positive Planet
  • Controversial
  • False Positive
  • Aliases
  • Data Access
  • Transit Prediction Service
  • Time Series
  • Kepler | K2
  • External Link
  • Search
  • Browse
  • Download
NExScI Logo IPAC Logo Caltech Logo JPL Logo NASA Logo

NASA Exoplanet Archive is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program.