WASP-99 Overview
WASP-99
1.77
R⦿
5926.33
K
WASP-99 b
1.020
RJup
Discovery Data
| Host | Planet | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|---|
| WASP-99 | WASP-99 b | 5.75 d | 11.43 R⨁ | Transit | 2014 | Hellier et al. 2014 | Confirmed Planet |
- RA
- 02h39m35.44s
- Dec
- -50d00m29.50s
- Distance
-
158.660+0.809-0.800pc
- Parallax
- 6.2740300±0.0317206 mas
- Ecliptic Latitude
- -60.09926 deg
- Ecliptic Longitude
- 8.47002 deg
- Galactic Latitude
- -59.18287 deg
- Galactic Longitude
- 268.16257 deg
- Total Proper Motion
- 39.9001411±0.0500135 mas/yr
- Proper Motion (RA)
- -1.8677900±0.0478412 mas/yr
- Proper Motion (Dec)
- -39.8564000±0.0500182 mas/yr
- Photometry
-
mV9.475±0.003
-
mTESS8.930±0.006
-
mJ8.436±0.023
-
mH8.129±0.033
-
mKs8.088±0.024
-
mW18.060±0.023
-
mW28.108±0.020
-
mW38.065±0.020
-
mW48.031±0.199
-
mGaia9.325100±0.000154
-
mB10.085±0.044
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.31±0.04 dex
-
[C/H] 0.38±0.09 dex
-
[O/H] 0.18±0.09 dex
| Source | TICv8 | Gaia DR2 | Bonomo et al. 2017 | Stassun et al. 2017 | Hellier et al. 2014 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
6079.000+139.790-123.372
|
5926.3335+71.6001-114.4180
|
6150±100 | 6150±100 | 6180±100 | 6180 | ||
|
L✶
(log10(L⦿))
|
0.5556446+0.0136948-0.0213999
|
0.54330248+0.00344073-0.00346821
|
--- | --- | --- | --- | ||
|
γ
(km/s)
|
--- | 25.147340687504212±0.220080872221718 | --- | --- | 24.9610±0.0002 | --- | ||
|
R✶
(R⦿)
|
1.7092700+0.0834166-0.0730658
|
1.7730938+0.0705005-0.0420798
|
1.76±0.11 | 1.64±0.09 |
1.76 +0.11-0.06
|
1.70927000045776±0.07824120000000 | ||
|
Metallicity
(dex)
|
--- | --- | 0.21±0.15 | 0.21 [Fe/H] | 0.21±0.15 [Fe/H] | --- | ||
|
v sin i
(km/s)
|
--- | --- | 6.80±0.50 | --- | 6.8±0.5 | --- | ||
|
Age
(Gyr)
|
--- | --- |
3.00+0.60-0.50
|
--- |
1.4 +1.1-0.6
|
--- | ||
|
M✶
(M⦿)
|
1.14000+0.17089-0.14891
|
--- | 1.480±0.100 | 1.21±0.28 | 1.48±0.10 | --- | ||
|
ρ✶
(g/cm3)
|
0.3218394+0.0756353-0.0647702
|
--- | --- | 0.39±0.06 |
0.38 +0.03-0.06
|
--- | ||
|
log g
(log10(cm/s2))
|
4.0293500+0.0866614-0.0783281
|
--- | --- | 4.30±0.10 |
4.12 +0.02-0.04
|
4.11766 | ||
|
Sp. T
|
--- | --- | --- | --- | F8 | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Stassun et al. 2017 | Sodickson & Grunblatt 2025 | Kokori et al. 2023 | Patel & Espinoza 2022 | Ivshina & Winn 2022 | Bonomo et al. 2017 | Hellier et al. 2014 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|---|
|
a/R✶
|
8.77±0.47 | --- | 8.59±0.17 |
8.71+0.04-0.10
|
--- | --- | --- | --- | ||
|
i
(deg)
|
88.80±1.10 | --- | 88.8±1.1 | --- | --- | 88.8±1.1 | 88.8±1.1 | --- | ||
|
P
(days)
|
5.75251±0.00004 | 5.753000000±0.000000973 | 5.7525875±0.0000026 |
5.7525835+0.0000024-0.0000022
|
5.7525907±0.0000026 | 5.752510±0.000040 | 5.75251±0.00004 | 5.75257972137803±0.00000133313120 | ||
|
Rp/R✶
|
--- | --- | 0.0640±0.0016 | 0.0678±0.0003 | --- | --- | --- | --- | ||
|
TC
(days)
|
--- |
2459135.796000±0.000101
(BJD)
|
2458807.8986±0.0002
(BJD-TDB)
|
2459141.54851±0.00018
(BJD)
|
2458387.95949±0.00030
(BJD-TDB)
|
2456224.9832±0.0014
(BJD-TDB)
|
2456224.9824±0.0014
(HJD-UTC)
|
2458382.20793000±0.00017195
(BJD)
|
||
|
Mp
(M⨁)
|
772±118 | --- | --- | --- | --- | 890±41 | 883.53±41.32 | --- | ||
|
Mp
(MJup)
|
2.43±0.37 | --- | --- | --- | --- | 2.80±0.13 | 2.78±0.13 | --- | ||
|
e
|
0.0 | --- | --- | --- | --- | <0.0100 | 0 | --- | ||
|
Rp
(R⨁)
|
11.4±0.7 | --- | --- | --- | --- |
12.33+0.90-0.56
|
12.33 +0.90-0.56
|
12.7442838169884±0.5870171000000 | ||
|
Rp
(RJup)
|
1.02±0.06 | --- | --- | --- | --- |
1.100+0.080-0.050
|
1.10 +0.08-0.05
|
1.13697080564947±0.05237024808152 | ||
|
K
(m/s)
|
242.2±1.7 | --- | --- | --- | --- |
244.5+3.4-3.6
|
242.2±1.7 | --- | ||
|
δ
(%)
|
0.41±0.02 | --- | --- | --- | --- | --- | 0.41±0.02 | 0.528495257126622±0.002620151100000 | ||
|
ρ
(g/cm3)
|
--- | --- | --- | --- | --- |
2.63+0.45-0.47
|
2.79±0.40 | --- | ||
|
a
(au)
|
--- | --- | --- | --- | --- | 0.0717±0.0016 | 0.0717±0.0016 | --- | ||
|
Teq
(K)
|
--- | --- | --- | --- | --- | --- | 1480±40 | 1368.47129028832 | ||
|
b
|
--- | --- | --- |
0.100+0.085-0.065
|
--- | --- | 0.18±0.17 | --- | ||
|
T14
(hours)
|
--- | --- | --- | --- | --- | --- | 5.256±0.072 | 5.40715976397807±0.02209075200000 | ||
|
S
(S⨁)
|
--- | --- | --- | --- | --- | --- | --- | 828.826759279256 |
- Known Objects
- 1 Confirmed Planets
- 2 2MASS Point Source Catalog
- Data Files
- 1 SuperWASP Time Series
- 1 Associated Literature Data
-
In Search of Decay: An Analysis of Transit Times of Hot Jupiters in Main-sequence and Post-main-sequence Systems
Sodickson & Grunblatt 2025 | Reference Overview -
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
Empirical Limb-darkening Coefficients and Transit Parameters of Known Exoplanets from TESS
Patel & Espinoza 2022 | Reference Overview -
TESS Transit Timing of Hundreds of Hot Jupiters
Ivshina & Winn 2022 | Reference Overview -
The Revised TESS Input Catalog and Candidate Target List
TICv8 | Reference Overview -
Gaia Data Release 2
Gaia DR2 | Reference Overview -
ExoFOP-TESS TOI Table
ExoFOP-TESS TOI -
The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets
Bonomo et al. 2017 | Reference Overview -
Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes
Stassun et al. 2017 | Reference Overview -
Transiting hot Jupiters from WASP-South, Euler and TRAPPIST: WASP-95b to WASP-101b
Hellier et al. 2014 | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview
- 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
