HAT-P-8 Overview
HAT-P-8
1.58
R⦿
6200.00
K
HAT-P-8 b
1.400
RJup
HAT-P-8 B
HAT-P-8 C
Discovery Data
| Host | Planet | Orbital Separation | Planet Size | Method | Year | Reference | Disposition |
|---|---|---|---|---|---|---|---|
| HAT-P-8 | HAT-P-8 b | 3.08 d | 15.69 R⨁ | Transit | 2008 | Latham et al. 2009 | Confirmed Planet |
HAT-P-8
- This reference contains discussion regarding the stellar multiplicity of this system. (Bergfors et al. 2013)
- This reference contains discussion regarding the stellar multiplicity of this system. (Bechter et al. 2014)
- This reference contains discussion regarding the stellar multiplicity of this system. (Ngo et al. 2015)
- RA
- 22h52m09.96s
- Dec
- +35d26m49.84s
- Distance
-
211.553+1.709-1.682pc
- Parallax
- 4.6984400±0.0375931 mas
- Ecliptic Latitude
- 38.80075 deg
- Ecliptic Longitude
- .9286 deg
- Galactic Latitude
- -21.38256 deg
- Galactic Longitude
- 97.14496 deg
- Total Proper Motion
- 76.2465043±0.0629093 mas/yr
- Proper Motion (RA)
- 74.7468000±0.0632308 mas/yr
- Proper Motion (Dec)
- 15.0481000±0.0543768 mas/yr
- Photometry
-
mV10.358±0.005
-
mTESS9.7758±0.0061
-
mJ9.214±0.022
-
mH9.004±0.018
-
mKs8.953±0.013
-
mW18.927±0.023
-
mW28.946±0.020
-
mW38.902±0.028
-
mW49.146±0.535
-
mGaia10.148900±0.000441
-
mB10.770±0.068
-
Abundances
(Hypatia Catalog) -
[Fe/H] 0.08±0.14 dex
-
[C/H] 0.06±0.09 dex
-
[Si/H] 0.07±0.05 dex
-
[Ca/H] 0.14±0.06 dex
| Source | TICv8 | Gaia DR2 | Bonomo et al. 2017 | Stassun et al. 2017 | Knutson et al. 2014 | Mortier et al. 2013 | Mancini et al. 2013 | Moutou et al. 2011 | Latham et al. 2009 | Luo et al. 2018 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Teff
(K)
|
6401.7900+115.7410-90.3351
|
6002.0750+189.6250-51.9246
|
6200±80 | 6200±80 | --- | 6550±61 | --- | 6200±80 | 6200±80 | --- | 6401.790±103.038 | ||
|
L✶
(log10(L⦿))
|
0.4912401+0.0262244-0.0156273
|
0.4635975+0.0051485-0.0052102
|
--- | --- | --- | --- | --- | --- | 0.519±0.050 | --- | --- | ||
|
γ
(km/s)
|
--- | -22.236549419604234±0.344582007903528 | --- | --- | --- | --- | --- | -22.3840±0.0035 | -22.53±0.79 | --- | --- | ||
|
v sin i
(km/s)
|
--- | --- | 11.50±0.50 | --- | --- | --- | --- | 14.5±0.8 | 11.5±0.5 | --- | --- | ||
|
M✶
(M⦿)
|
1.285000+0.233687-0.160622
|
--- | 1.280±0.040 | 1.27±0.41 | 1.192±0.075 | 1.18±0.08 | 1.192±0.075 | --- | 1.28±0.04 | --- | --- | ||
|
R✶
(R⦿)
|
1.4311000+0.0649784-0.0548005
|
1.5770612+0.0276450-0.0951180
|
1.580+0.080-0.060
|
1.57±0.15 | --- | 0.74±0.07 | 1.475±0.034 | --- | 1.58±0.08 | --- | 1.43110001087189±0.05988950000000 | ||
|
Metallicity
(dex)
|
0.0480000±0.0357771 [M/H] | --- | 0.010±0.080 | 0.01 [Fe/H] | -0.040±0.080 [Fe/H] | 0.07±0.04 [Fe/H] | --- | --- | --- | --- | --- | ||
|
ρ✶
(g/cm3)
|
0.6181003+0.1523402-0.1141933
|
--- | --- | 0.46±0.07 | --- | 0.37±0.04 | 0.523±0.031 | --- | --- | --- | --- | ||
|
log g
(log10(cm/s2))
|
4.2356300+0.0984781-0.0695062
|
--- | --- | 4.15±0.03 | --- | 4.80±0.08 | 4.177±0.022 | --- | --- | --- | 4.2356300±0.0839922 | ||
|
Age
(Gyr)
|
--- | --- | 3.4±1.0 | --- | --- | --- |
4.3+1.7-1.5
|
--- | --- | --- | --- | ||
|
Sp. T
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | F6 | --- |
- Status
- Confirmed Planet
- Detected By
- Radial Velocity, Transit
| Source | Stassun et al. 2017 | Kokori et al. 2023 | Ivshina & Winn 2022 | Kokori et al. 2022 | Bonomo et al. 2017 | Knutson et al. 2014 | Mancini et al. 2013 | Moutou et al. 2011 | Latham et al. 2009 | ExoFOP-TESS TOI | Show Candidate Solutions >> | << Hide Candidate Solutions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Teq
(K)
|
--- | --- | --- | --- | --- | --- | 1713±27 | --- | 1700±35 | 1592.49511167365 | ||
|
Mp
(M⨁)
|
407±86 | --- | --- | --- | 430.3±11.1 |
414.5+20.7-20.3
|
405.2±19.4 | 483±57 |
483.08 +57.21-50.85
|
--- | ||
|
Mp
(MJup)
|
1.28±0.27 | --- | --- | --- | 1.354±0.035 |
1.304+0.065-0.064
|
1.275±0.061 | 1.52±0.18 |
1.52 +0.18-0.16
|
--- | ||
|
i
(deg)
|
87.80±0.76 | 87.1±0.4 | --- | --- |
87.50+1.90-0.90
|
--- | 87.08±0.36 | --- |
87.5 +1.9-0.9
|
--- | ||
|
P
(days)
|
3.076340±0.000004 | 3.07634347±0.00000058 | 3.0763427±0.0000030 | 3.0763433±0.0000007 | 3.0763458±0.0000024 | --- | 3.0763458±0.0000024 | 3.0763373±0.0000031 | 3.0763776±0.000004 | 3.07632903681377±0.00005401882300 | ||
|
ρ
(g/cm3)
|
--- | --- | --- | --- |
0.497+0.078-0.065
|
--- | 0.686±0.046 | --- | 0.568±0.048 | --- | ||
|
Rp
(R⨁)
|
15.7±1.5 | --- | --- | --- | 16.81±0.78 | --- | 14.81±0.45 | --- |
16.81 +0.90-0.67
|
14.2287485263567±0.6003561600000 | ||
|
Rp
(RJup)
|
1.40±0.13 | --- | --- | --- | 1.500±0.070 | --- | 1.321±0.040 | --- |
1.50 +0.08-0.06
|
1.26940610454943±0.05356028135547 | ||
|
a
(au)
|
--- | --- | --- | --- |
0.04496+0.00046-0.00045
|
--- | 0.04390±0.00091 | 0.0449±0.0007 | 0.0487±0.0026 | --- | ||
|
TC
(days)
|
--- |
2456052.75596±0.00024
(BJD-TDB)
|
2455409.80001±0.00047
(BJD-TDB)
|
2455945.0839±0.0003
(BJD-TDB)
|
2454437.6749±0.0014
(BJD-TDB)
|
--- |
2454437.6742±0.0014
(BJD-TDB)
|
2454437.67505±0.00042
(BJD)
|
2454437.67582±0.00034
(BJD)
|
2459827.42994500±0.00024816
(BJD)
|
||
|
e
|
0.0 | --- | --- | --- | <0.0060 |
0.00290+0.01600-0.00240
|
--- | 0 | 0 | --- | ||
|
K
(m/s)
|
153.1±3.9 | --- | --- | --- |
160.4+2.4-2.5
|
162.0+4.4-3.9
|
--- | 158.2±3.2 | 153.1±3.9 | --- | ||
|
λ
(deg)
|
--- | --- | --- | --- | --- | --- | --- |
-17 +9.2-11.5
|
--- | --- | ||
|
S
(S⨁)
|
--- | --- | --- | --- | --- | --- | --- | --- | --- | 1519.96445996736 | ||
|
δ
(%)
|
0.830±0.016 | --- | --- | --- | --- | --- | --- | --- | 0.6427 | 0.949083968422085±0.005236353700000 | ||
|
T14
(hours)
|
--- | --- | --- | --- | --- | --- | --- | --- | 3.8088±0.0264 | 3.90160580020701±0.02010321400000 | ||
|
a/R✶
|
6.13±0.29 | 6.29±0.06 | --- | --- | --- | --- | --- | --- |
6.35 +0.34-0.17
|
--- | ||
|
Rp/R✶
|
--- | 0.0921±0.0005 | --- | --- | --- | --- | --- | --- | 0.0953±0.0009 | --- | ||
|
ω
(deg)
|
--- | --- | --- | --- | --- |
116+150-35
|
--- | --- | --- | --- | ||
|
b
|
--- | --- | --- | --- | --- | --- | --- | --- |
0.32 +0.09-0.19
|
--- |
- RA
- ---
- Dec
- ---
- Distance
- ---
- Parallax
- ---
- Ecliptic Latitude
- ---
- Ecliptic Longitude
- ---
- Galactic Latitude
- ---
- Galactic Longitude
- ---
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
-
mV---
-
mTESS---
-
mJ---
-
mH---
-
mKs---
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mGaia---
-
mB---
- RA
- ---
- Dec
- ---
- Distance
- ---
- Parallax
- ---
- Ecliptic Latitude
- ---
- Ecliptic Longitude
- ---
- Galactic Latitude
- ---
- Galactic Longitude
- ---
- Total Proper Motion
- ---
- Proper Motion (RA)
- ---
- Proper Motion (Dec)
- ---
- Photometry
-
mV---
-
mTESS---
-
mJ---
-
mH---
-
mKs---
-
mW1---
-
mW2---
-
mW3---
-
mW4---
-
mGaia---
-
mB---
Literature Time Series
(3 File Types, 9 Files)
| File Type | Data Points | Filter | Reference |
|---|---|---|---|
| Photometric Light Curve | 4464 | I (Generic) | Latham et al. 2009 |
| Photometric Light Curve | 1451 | z (Sloan) | Latham et al. 2009 |
| Photometric Light Curve | 11162 | Clear, no filter | SuperWASP Consortium |
| Radial Velocity Curve | 10 | Optical Spectra | Latham et al. 2009 |
| Amateur Light Curve | 272 | Clear, no filter | Amateur-Contributed Light Curves |
| Amateur Light Curve | 403 | R (Generic) | Amateur-Contributed Light Curves |
| Amateur Light Curve | 199 | R (Generic) | Amateur-Contributed Light Curves |
| Amateur Light Curve | 189 | R (Generic) | Amateur-Contributed Light Curves |
| Amateur Light Curve | 145 | R (Generic) | Amateur-Contributed Light Curves |
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 2 SuperWASP Time Series
- 1 Associated Literature Data
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 2 SuperWASP Time Series
- 1 Associated Literature Data
- Known Objects
- 1 Confirmed Planets
- 1 2MASS Point Source Catalog
- Data Files
- 2 SuperWASP Time Series
- 1 Associated Literature Data
-
ExoClock Project. III. 450 New Exoplanet Ephemerides from Ground and Space Observations
Kokori et al. 2023 | Reference Overview -
TESS Transit Timing of Hundreds of Hot Jupiters
Ivshina & Winn 2022 | Reference Overview -
ExoClock Project. II. A Large-scale Integrated Study with 180 Updated Exoplanet Ephemerides
Kokori et al. 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 -
Friends of Hot Jupiters. II. No Correspondence between Hot-jupiter Spin-Orbit Misalignment and the Incidence of Directly Imaged Stellar Companions
Ngo et al. 2015 | Reference Overview -
WASP-12b and HAT-P-8b are Members of Triple Star Systems
Bechter et al. 2014 | Reference Overview -
Friends of Hot Jupiters I: A Radial Velocity Search for Massive, Long-Period Companions to Close-In Gas Giant Planets
Knutson et al. 2014 | Reference Overview -
All WISE Data Release
Cutri et al. 2014 | Reference Overview -
New and updated stellar parameters for 90 transit hosts. The effect of the surface gravity
Mortier et al. 2013 | Reference Overview -
A lower radius and mass for the transiting extrasolar planet HAT-P-8 b
Mancini et al. 2013 | Reference Overview -
Stellar companions to exoplanet host stars: Lucky Imaging of transiting planet hosts
Bergfors et al. 2013 | Reference Overview -
Warm Spitzer Observations of Three Hot Exoplanets: XO-4b, HAT-P-6b, and HAT-P-8b
Todorov et al. 2012 | Reference Overview -
Spin-orbit inclinations of the exoplanetary systems HAT-P-8b, HAT-P-9b, HAT-P-16b, and HAT-P-23b
Moutou et al. 2011 | Reference Overview -
Exoplanet Archive Help: Amateur Light Curves
Amateur-Contributed Light Curves -
HATNet Field G205: Follow-Up Observations of 28 Transiting-Planet candidates and Confirmation of the Planet HAT-P-8b
Latham et al. 2009 | Reference Overview -
2MASS All-Sky Catalog of Point Sources
2MASS Point Source Catalog | Reference Overview -
SuperWASP: Wide Angle Search for Planets
SuperWASP Consortium -
LAMOST DR4 catalogs
Luo et al. 2018 | Reference Overview
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- Aliases
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