HAT-P-42 Overview

HAT-P-42 1.40 R_⦿ 5773.67 K

HAT-P-42 b

1.280 R_Jup

Overview Parameters Nearby Data Bibliography 11 Legend Expand All

HAT-P-42 Architecture & Discovery Information

Name	Orbital Separation	Planet Size	Method	Year	Reference	Disposition
HAT-P-42
HAT-P-42 b	4.64 d	14.35 R_⨁	Transit	2012	Boisse et al. 2013	Confirmed Planet

HAT-P-42 Stellar Parameters (5 Solutions)

RA: 09h01m22.65s

Dec: +06d05m49.50s

Distance: 405.238+7.779-7.496
pc

Parallax: 2.4395700±0.0461455 mas

Ecliptic Latitude: -10.40149 deg

Ecliptic Longitude: 135.97947 deg

Galactic Latitude: 31.58211 deg

Galactic Longitude: 223.004 deg

Total Proper Motion: 33.5158307±0.0463353 mas/yr

Proper Motion (RA): -2.9107100±0.0752704 mas/yr

Proper Motion (Dec): -33.3892000±0.0460458 mas/yr

Photometry: m_V
12.125±0.046; m_TESS
11.5598±0.0060; m_J
10.960±0.023; m_H
10.677±0.024; m_Ks
10.626±0.026; m_W1
10.569±0.023; m_W2
10.617±0.019; m_W3
10.680±0.103; m_W4
9.103; m_Gaia
12.00310±0.00021; m_B
12.827±0.019; m_g
12.6126000±0.0012756; m_i
11.9737000±0.0011115; m_r
13.8471000±0.0071644; m_u
14.6496000±0.0041461; m_z
12.6331000±0.0043478

Abundances (Hypatia Catalog): [Fe/H] 0.30±0.04 dex; [C/H] 0.37±0.09 dex

Tools: Planetary Systems; ExoFOP Target Overview Page; IRSA Finding Chart; TOI; Stellar Hosts

Source	TICv8	Gaia DR2	Bonomo et al. 2017	Boisse et al. 2013	ExoFOP
T_eff (K)	5859.000+148.701-105.642	5773.6665+83.0835-24.0000	5743±50	5743±50	5743
L_✶ (log₁₀(L_⦿))	0.32673064+0.01872404-0.02598108	0.29610450+0.01138067-0.01168697	---	0.356 +0.075-0.091	---
γ (km/s)	---	20.922414507454736±0.648873144110739	---	20.26±0.15	---
R_✶ (R_⦿)	1.4137400+0.0716492-0.0668030	1.4054050+0.0117573-0.0395911	1.53±0.14	1.530±0.140	1.41374003887177±0.06922610000000
Metallicity (dex)	---	---	0.270±0.080	0.27±0.08 [Fe/H]	---
v sin i (km/s)	---	---	3.50±0.50	3.5±0.5	---
Age (Gyr)	---	---	5.20+1.80-0.70	5.2 +1.8-0.7	---
M_✶ (M_⦿)	1.059000+0.142754-0.110434	---	1.178±0.068	1.178±0.068	---
log g (log₁₀(cm/s²))	4.1622200+0.0810134-0.0698351	---	---	4.14±0.07	4.14093
ρ_✶ (g/cm³)	0.5283832+0.1249671-0.1018017	---	---	---	---

HAT-P-42 b Planetary Parameters (7 Solutions)

Status: Confirmed Planet

Detected By: Radial Velocity, Transit

Tools: Planetary Systems; Transit Prediction Service; TOI; Transit

Source	Boisse et al. 2013	Kokori et al. 2023	Patel & Espinoza 2022	Ivshina & Winn 2022	Mallonn et al. 2019	Bonomo et al. 2017	ExoFOP
a/R_✶	8.08 +0.82-0.54	8.1+0.8-0.5	9.750+0.230-0.480	---	---	---	---
T_eq (K)	1428±60	---	---	---	---	---	1304.36522668017
b	0.577 +0.068-0.162	---	0.210+0.170-0.130	---	---	---	---
M_p (M_⨁)	331.801±26.379	---	---	---	---	280+44-41	---
M_p (M_Jup)	1.044±0.083	---	---	---	---	0.880+0.140-0.130	---
e	0	---	---	---	---	<0.11	---
i (deg)	85.9 +1.3-0.8	85.9+1.3-0.8	---	---	---	85.90+1.30-0.80	---
P (days)	4.641878±0.000032	4.64183885±0.00000087	4.6418499+0.0000054-0.0000057	4.6418402±0.0000016	4.6418381±0.0000080	4.641878±0.000032	4.64184345360601±0.00000174763010
ρ (g/cm³)	0.61 +0.34-0.15	---	---	---	---	0.52+0.25-0.16	---
R_p (R_⨁)	14.348±1.715	---	---	---	---	14.3±1.7	12.6031792960133±0.6311306400000
R_p (R_Jup)	1.280±0.153	---	---	---	---	1.28±0.15	1.12438228179064±0.05630580129378
R_p/R_✶	0.0860±0.0033	0.086±0.003	0.0811+0.0013-0.0012	---	---	---	---
K (m/s)	113.5±7.9	---	---	---	---	97.0±14.0	---
a (au)	0.0575±0.0011	---	---	---	---	0.0575±0.0011	---
T₁₄ (hours)	4.0344±0.0936	---	---	---	---	---	3.85667721488391±0.04032968700000
T_C (days)	2455952.52603±0.00075 (BJD-UTC)	2458941.87092±0.00020 (BJD-TDB)	2459252.87532±0.00052 (BJD)	2457753.56029±0.00046 (BJD-TDB)	2456036.07987±0.00077 (BJD-TDB)	2455952.52679±0.00075 (BJD-TDB)	2458519.46270300±0.00029416 (BJD)
S (S_⨁)	---	---	---	---	---	---	684.097260272355
δ (%)	---	---	---	---	---	---	0.752544752304187±0.005610482000000

Nearby Data (within 30 arcseconds) Browse Nearby Data

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Known Objects: 1 Confirmed Planets; 2 2MASS Point Source Catalog

Data Files: 1 Associated Literature Data

Bibliography (11 References)

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
Ephemeris refinement of 21 hot Jupiter exoplanets with high timing uncertainties
Mallonn et al. 2019 Reference Overview
Gaia Data Release 2
Gaia DR2 Reference Overview
ExoFOP TOI Table
ExoFOP
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
All WISE Data Release
Cutri et al. 2014 Reference Overview
HAT-P-42b and HAT-P-43b. Two inflated transiting hot Jupiters from the HATNet Survey
Boisse et al. 2013 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
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Transit Prediction Service
Time Series
Kepler | K2

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