Confirmed Exoplanet Discovered 2015

HIP 107773 b

A gas giant orbiting the k-type orange HIP 107773, located approximately 343.1 light-years from Earth.

Key parameters at a glance

  • A radius of 13.40 Earth radii
  • A mass of 629.30 Earth masses
  • Surface gravity around 3.50 g
  • An orbital period of 144.300 days
  • Semi-major axis 0.7200 AU
  • Distance from Earth 343.05 light-years
  • Earth Similarity Index 0.365
  • Travel time at Voyager 1 speed 6,049,702 years

HIP 107773 b Planet Profile

Physical Specs

Radius
13.40 R⊕
Radius (Jupiter)
1.190 R♃
Mass
629.30 M⊕
Mass (Jupiter)
1.980 M♃
Density
1.44 g/cm³
Surface Gravity
3.50 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.365
HZ Position Unknown
Controversial No

Discovery

Year 2015
Method Radial Velocity
Facility Multiple Observatories
Telescope Multiple Telescopes

Size rank in cohort

Rank by radius

#730of 1771

top 41.2%

This planet

13.40R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth HIP 107773 b Jupiter
Radius (R⊕)1.0013.4011.21
Mass (M⊕)1.00629.30317.83
Density (g/cm³)5.511.441.33
Surface Gravity (g)1.003.502.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Minimum mass (M sin i) 629.303 M⊕ Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD

HD 207229

HIP

HIP 107773

TIC

TIC 406320735

Gaia DR2

Gaia DR2 6402076022332085760

Gaia DR3

Gaia DR3 6402076022332085760

System

HIP 107773

Percentile among Gas Giant cohort

Radius 13.400 R⊕ · percentile 56 / cohort 1771
Mass 629.303 M⊕ · percentile 55 / cohort 1747
Orbital period 144.30 d · percentile 56 / cohort 1533
Distance 105.18 pc · percentile 36 / cohort 1759
ESI 0.365 · percentile 75 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
144.300 days
Semi-major axis
0.7200 AU
Eccentricity
0.090
Inclination
°

Year Length

A year here lasts approximately 144.30 Earth days (39.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.7200 AU.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.365

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Jones et al. 2015

Instrument

Multiple Instruments

Publication

2015-08

Observation locale

Ground

Host System: HIP 107773

Spectral Class

K-type orange

Effective Temperature

4,945 K — cooler than the Sun (5,778 K)

Estimated Age

Stellar Radius

11.600 R☉

Stellar Mass

2.420 M☉

Metallicity [Fe/H]

0.03

Extended Stellar Properties

Surface gravity (log g)

2.600 dex

Systemic radial velocity

-0.17 km/s

Rotational v·sin i

2.00 km/s

Metallicity ratio

[Fe/H]

Distance
105.18 parsec
Light-years 343.05 ly
V-band magnitude
5.62 mag
Voyager-speed travel 6,049,702 yr

Multi-band Host Photometry — 11 bands

3.16.66.63B5.62V5.36Gaia4.77TESS3.94J3.37H3.29K3.29W13.08W23.31W33.25W4

Astrometric Data

Parallax

9.480 mas

Total Proper Motion

37.450 mas/yr

PM Right Ascension

-0.70 mas/yr

PM Declination

-37.44 mas/yr

Galactic Cartesian (pc)

x = 0.360 · y = -0.230 · z = -0.904

Equatorial (J2000)

RA 327.50051° · Dec -64.71270°

Galactic ℓ, b

327.402° · -42.798°

Ecliptic λ, β

302.280° · -47.585°

HTM-20 index

681124791

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