Key parameters at a glance

A radius of 14.93 Earth radii
A mass of 335.63 Earth masses
Surface gravity around 1.51 g
An orbital period of 3.647 days
Semi-major axis 0.0498 AU
Equilibrium temperature 1,581 K (1308 °C)
Distance from Earth 1,653.50 light-years
Earth Similarity Index 0.076
Travel time at Voyager 1 speed 29,159,414 years

HAT-P-35 b Planet Profile

Physical Specs

Radius

14.93 R⊕

Radius (Jupiter)

1.332 R♃

Mass

335.63 M⊕

Mass (Jupiter)

1.056 M♃

Density

0.55 g/cm³

Surface Gravity

1.51 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.076

HZ Position Inner

Controversial No

Discovery

Year 2011

Method Transit

Facility HATNet

Telescope Canon 200mm f/1.8L

Size rank in cohort

Rank by radius

#235of 1771

top 13.2%

This planet

14.93R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HAT-P-58 b 14.93 R⊕ WASP-184 b 14.91 R⊕ WASP-7 b 14.91 R⊕

Metric	Earth	HAT-P-35 b	Jupiter
Radius (R⊕)	1.00	14.93	11.21
Mass (M⊕)	1.00	335.63	317.83
Density (g/cm³)	5.51	0.55	1.33
Surface Gravity (g)	1.00	1.51	2.53
Insolation (S⊕)	1.00	999.67	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	335.628 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 455096220

Gaia DR2

Gaia DR2 3094733088793018240

Gaia DR3

Gaia DR3 3094733088793018240

System

HAT-P-35

Percentile among Gas Giant cohort

Radius 14.930 R⊕ · percentile 87 / cohort 1771

Mass 335.628 M⊕ · percentile 36 / cohort 1747

Orbital period 3.65 d · percentile 25 / cohort 1533

Distance 506.97 pc · percentile 75 / cohort 1759

ESI 0.076 · percentile 16 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

3.647 days

Semi-major axis

0.0498 AU

Eccentricity

0.020

Inclination

87.30 °

Year Length

A year here lasts approximately 3.65 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0498 AU.

Transit Fingerprint

Depth

0.899 %

Duration

3.936 h

Impact parameter b

0.357

Rp / R★

0.095400

Transit midpoint (BJD)

2,455,578.6616

Photometric dip

Transit produces a flux drop of 8,995 ppm lasting ≈ 3.94 h.

Extended Orbital Architecture

Planet / star radius ratio

0.095400

Semi-major axis / stellar radius

7.450

Impact parameter (b)

0.357

RV semi-amplitude (K)

120.900 m/s

Transit mid-time (BJD)

2,455,578.6616

Long. of periastron (ω)

248.00°

Angular separation (arcsec)

0.09820

Eq. Temperature

1,581K

(1308 °C)

Insolation (S⊕)

999.67

Earth = 1.00

Earth Similarity (ESI)

0.076

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. 2012

Instrument

2K CCD Sensor

Publication

2012-07

Observation locale

Ground

Discovery cohort

Planets confirmed in 2011 at HATNet (10 shown).

HAT-P-27 b · Gas Giant HAT-P-37 b · Gas Giant HAT-P-31 b · Gas Giant HAT-P-29 b · Gas Giant HAT-P-34 b · Gas Giant HAT-P-28 b · Gas Giant HAT-P-36 b · Gas Giant HAT-P-30 b · Gas Giant HAT-P-33 b · Gas Giant HAT-P-32 b · Gas Giant

Host System: HAT-P-35

Spectral Class

F-type yellow-white

Effective Temperature

6,096 K — hotter than the Sun (5,778 K)

Estimated Age

3.50 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.435 R☉

Stellar Mass

1.236 M☉

Metallicity [Fe/H]

0.11

Extended Stellar Properties

Surface gravity (log g)

4.210 dex

Stellar density

0.590 g/cm³

Systemic radial velocity

40.95 km/s

Rotational v·sin i

0.50 km/s

Distance

506.97 parsec

Light-years 1,653.50 ly

V-band magnitude

12.39 mag

Voyager-speed travel 29,159,414 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.945 mas

Total Proper Motion

12.066 mas/yr

PM Right Ascension

-9.57 mas/yr

PM Declination

-7.35 mas/yr

Galactic Cartesian (pc)

x = -0.546 · y = 0.833 · z = 0.083

Equatorial (J2000)

RA 123.25070° · Dec 4.78703°

Galactic ℓ, b

218.074° · 20.308°

Ecliptic λ, β

124.403° · -14.769°

HTM-20 index

1415677093