Key parameters at a glance

A radius of 14.20 Earth radii
A mass of 171.63 Earth masses
Surface gravity around 0.85 g
An orbital period of 4.426 days
Semi-major axis 0.0600 AU
Distance from Earth 589.17 light-years
Earth Similarity Index 0.259
Travel time at Voyager 1 speed 10,389,981 years

Pr0201 b Planet Profile

Physical Specs

Radius

14.20 R⊕

Radius (Jupiter)

1.270 R♃

Mass

171.63 M⊕

Mass (Jupiter)

0.540 M♃

Density

0.33 g/cm³

Surface Gravity

0.85 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.259

HZ Position Unknown

Controversial No

Discovery

Year 2012

Method Radial Velocity

Facility Fred Lawrence Whipple Observatory

Telescope 1.5 m Tillinghast Reflector Telescope

Size rank in cohort

Rank by radius

#334of 1771

top 18.8%

This planet

14.20R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

OGLE-2011-BLG-0251L b 14.20 R⊕ HIP 57274 c 14.20 R⊕ HD 187123 b 14.20 R⊕

Metric	Earth	Pr0201 b	Jupiter
Radius (R⊕)	1.00	14.20	11.21
Mass (M⊕)	1.00	171.63	317.83
Density (g/cm³)	5.51	0.33	1.33
Surface Gravity (g)	1.00	0.85	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	171.628 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 175290574

Gaia DR2

Gaia DR2 661424074527577600

Gaia DR3

Gaia DR3 661424074528836480

System

Pr0201

Percentile among Gas Giant cohort

Radius 14.200 R⊕ · percentile 79 / cohort 1771

Mass 171.628 M⊕ · percentile 15 / cohort 1747

Orbital period 4.43 d · percentile 33 / cohort 1533

Distance 180.64 pc · percentile 48 / cohort 1759

ESI 0.259 · percentile 47 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

4.426 days

Semi-major axis

0.0600 AU

Eccentricity

0.000

Inclination

— °

Year Length

A year here lasts approximately 4.43 Earth days (1.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0600 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.259

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Quinn et al. 2012

Instrument

TRES Echelle Spectrograph

Publication

2012-09

Observation locale

Ground

Host System: Pr0201

Spectral Class

F-type yellow-white

Effective Temperature

6,174 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.150 R☉

Stellar Mass

1.240 M☉

Metallicity [Fe/H]

0.19

Extended Stellar Properties

Surface gravity (log g)

4.410 dex

Stellar density

1.035 g/cm³

Systemic radial velocity

33.95 km/s

Rotational v·sin i

9.60 km/s

Metallicity ratio

[Fe/H]

Distance

180.64 parsec

Light-years 589.17 ly

V-band magnitude

10.45 mag

Voyager-speed travel 10,389,981 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

5.508 mas

Total Proper Motion

39.115 mas/yr

PM Right Ascension

-36.54 mas/yr

PM Declination

-13.95 mas/yr

Galactic Cartesian (pc)

x = -0.609 · y = 0.714 · z = 0.346

Equatorial (J2000)

RA 130.43240° · Dec 20.22682°

Galactic ℓ, b

205.422° · 32.970°

Ecliptic λ, β

127.505° · 1.897°

HTM-20 index

-1942029805