Key parameters at a glance

A radius of 12.03 Earth radii
A mass of 241.87 Earth masses
Surface gravity around 1.67 g
An orbital period of 2.645 days
Semi-major axis 0.0377 AU
Equilibrium temperature 1,512 K (1239 °C)
Distance from Earth 1,137.68 light-years
Earth Similarity Index 0.090
Travel time at Voyager 1 speed 20,063,004 years

HAT-P-62 b Planet Profile

Physical Specs

Radius

12.03 R⊕

Radius (Jupiter)

1.073 R♃

Mass

241.87 M⊕

Mass (Jupiter)

0.761 M♃

Density

0.77 g/cm³

Surface Gravity

1.67 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.090

HZ Position Inner

Controversial No

Discovery

Year 2021

Method Transit

Facility HATNet

Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#1492of 1771

top 84.2%

This planet

12.03R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HAT-P-68 b 12.02 R⊕ KOI-134 b 12.04 R⊕ WASP-53 b 12.04 R⊕

Metric	Earth	HAT-P-62 b	Jupiter
Radius (R⊕)	1.00	12.03	11.21
Mass (M⊕)	1.00	241.87	317.83
Density (g/cm³)	5.51	0.77	1.33
Surface Gravity (g)	1.00	1.67	2.53
Insolation (S⊕)	1.00	867.20	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	241.867 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 453064665

Gaia DR2

Gaia DR2 255397142179844224

Gaia DR3

Gaia DR3 255397142179844224

System

HAT-P-62

Percentile among Gas Giant cohort

Radius 12.027 R⊕ · percentile 16 / cohort 1771

Mass 241.867 M⊕ · percentile 26 / cohort 1747

Orbital period 2.65 d · percentile 11 / cohort 1533

Distance 348.82 pc · percentile 65 / cohort 1759

ESI 0.090 · percentile 23 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

2.645 days

Semi-major axis

0.0377 AU

Eccentricity

0.101

Inclination

87.93 °

Year Length

A year here lasts approximately 2.65 Earth days (0.7% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0377 AU.

Transit Fingerprint

Depth

1.046 %

Duration

3.103 h

Impact parameter b

0.250

Rp / R★

0.094200

Transit midpoint (BJD)

2,457,118.3898

Photometric dip

Transit produces a flux drop of 10,457 ppm lasting ≈ 3.10 h.

Extended Orbital Architecture

Planet / star radius ratio

0.094200

Semi-major axis / stellar radius

6.930

Impact parameter (b)

0.250

RV semi-amplitude (K)

110.000 m/s

Transit mid-time (BJD)

2,457,118.3898

Angular separation (arcsec)

0.10800

Eq. Temperature

1,512K

(1239 °C)

Insolation (S⊕)

867.20

Earth = 1.00

Earth Similarity (ESI)

0.090

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Bakos et al. 2021

Instrument

Apogee 4K CCD Sensor

Publication

2021-07

Observation locale

Ground

Discovery cohort

Planets confirmed in 2021 at HATNet (6 shown).

HAT-P-59 b · Gas Giant HAT-P-61 b · Gas Giant HAT-P-63 b · Gas Giant HAT-P-58 b · Gas Giant HAT-P-60 b · Gas Giant HAT-P-64 b · Gas Giant

Host System: HAT-P-62

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,629 K — cooler than the Sun (5,778 K)

Estimated Age

8.10 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.170 R☉

Stellar Mass

1.023 M☉

Metallicity [Fe/H]

0.41

Extended Stellar Properties

Surface gravity (log g)

4.312 dex

Stellar density

0.901 g/cm³

Systemic radial velocity

50.42 km/s

Metallicity ratio

[Fe/H]

Distance

348.82 parsec

Light-years 1,137.68 ly

V-band magnitude

12.54 mag

Voyager-speed travel 20,063,004 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

2.839 mas

Total Proper Motion

46.188 mas/yr

PM Right Ascension

14.73 mas/yr

PM Declination

-43.78 mas/yr

Galactic Cartesian (pc)

x = 0.178 · y = 0.641 · z = 0.747

Equatorial (J2000)

RA 74.50438° · Dec 48.30086°

Galactic ℓ, b

158.837° · 3.399°

Ecliptic λ, β

78.643° · 25.470°

HTM-20 index

-662796