Confirmed Exoplanet Discovered 2013

HD 233604 b

A gas giant orbiting the k-type orange HD 233604, located approximately 2,762.7 light-years from Earth.

Key parameters at a glance

  • A radius of 12.70 Earth radii
  • A mass of 2,089.64 Earth masses
  • Surface gravity around 12.96 g
  • An orbital period of 192.000 days
  • Semi-major axis 0.7470 AU
  • Distance from Earth 2,762.73 light-years
  • Earth Similarity Index 0.440
  • Travel time at Voyager 1 speed 48,720,749 years

HD 233604 b Planet Profile

Physical Specs

Radius
12.70 R⊕
Radius (Jupiter)
1.130 R♃
Mass
2,089.64 M⊕
Mass (Jupiter)
6.575 M♃
Density
5.61 g/cm³
Surface Gravity
12.96 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.440
HZ Position Unknown
Controversial No

Discovery

Year 2013
Method Radial Velocity
Facility McDonald Observatory
Telescope 9.2 m Hobby-Eberly Telescope

Size rank in cohort

Rank by radius

#1130of 1771

top 63.7%

This planet

12.70R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

Metric Earth HD 233604 b Jupiter
Radius (R⊕)1.0012.7011.21
Mass (M⊕)1.002,089.64317.83
Density (g/cm³)5.515.611.33
Surface Gravity (g)1.0012.962.53
Insolation (S⊕)1.000.037

Alternative Mass Estimates

Method Value Interpretation
Minimum mass (M sin i) 2,089.644 M⊕ Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD

HD 233604

TIC

TIC 150184553

Gaia DR2

Gaia DR2 1023492257121204352

Gaia DR3

Gaia DR3 1023492257121204352

System

HD 233604

Percentile among Gas Giant cohort

Radius 12.700 R⊕ · percentile 34 / cohort 1771
Mass 2,089.644 M⊕ · percentile 81 / cohort 1747
Orbital period 192.00 d · percentile 57 / cohort 1533
Distance 847.06 pc · percentile 84 / cohort 1759
ESI 0.440 · percentile 98 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
192.000 days
Semi-major axis
0.7470 AU
Eccentricity
0.050
Inclination
°

Year Length

A year here lasts approximately 192.00 Earth days (52.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.7470 AU.

Eq. Temperature

 

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0.440

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Nowak et al. 2013

Instrument

High Resolution Spectrograph

Publication

2013-06

Observation locale

Ground

Discovery cohort

Planets confirmed in 2013 at McDonald Observatory (2 shown).

Host System: HD 233604

Spectral Class

K-type orange

Effective Temperature

4,791 K — cooler than the Sun (5,778 K)

Estimated Age

2.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

10.900 R☉

Stellar Mass

1.500 M☉

Metallicity [Fe/H]

-0.36

Extended Stellar Properties

Surface gravity (log g)

2.550 dex

Systemic radial velocity

-73.75 km/s

Rotational v·sin i

2.00 km/s

Metallicity ratio

[Fe/H]

Distance
847.06 parsec
Light-years 2,762.73 ly
V-band magnitude
10.29 mag
Voyager-speed travel 48,720,749 yr

Multi-band Host Photometry — 16 bands

7.814.714.66U11.33B10.29V10.11Gaia9.50TESS10.82Sloan g10.04Sloan r9.85Sloan i10.35Sloan z8.66J8.13H7.98K7.90W18.01W27.89W37.82W4

Astrometric Data

Parallax

1.151 mas

Total Proper Motion

19.834 mas/yr

PM Right Ascension

18.63 mas/yr

PM Declination

-6.82 mas/yr

Galactic Cartesian (pc)

x = -0.438 · y = 0.402 · z = 0.805

Equatorial (J2000)

RA 137.45351° · Dec 53.56820°

Galactic ℓ, b

163.935° · 41.832°

Ecliptic λ, β

122.432° · 35.341°

HTM-20 index

988658908

Similar Worlds

Explore Related Categories