Key parameters at a glance

A radius of 13.70 Earth radii
A mass of 355.97 Earth masses
Surface gravity around 1.90 g
An orbital period of 187.010 days
Semi-major axis 0.6990 AU
Distance from Earth 276.54 light-years
Earth Similarity Index 0.319
Travel time at Voyager 1 speed 4,876,820 years

omi CrB b Planet Profile

Physical Specs

Radius

13.70 R⊕

Radius (Jupiter)

1.230 R♃

Mass

355.97 M⊕

Mass (Jupiter)

1.120 M♃

Density

0.76 g/cm³

Surface Gravity

1.90 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.319

HZ Position Unknown

Controversial No

Discovery

Year 2012

Method Radial Velocity

Facility Okayama Astrophysical Observatory

Telescope 1.88 m Telescope

Size rank in cohort

Rank by radius

#554of 1771

top 31.2%

This planet

13.70R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 148164 b 13.70 R⊕ HD 114783 b 13.70 R⊕ HD 159243 b 13.70 R⊕

Metric	Earth	omi CrB b	Jupiter
Radius (R⊕)	1.00	13.70	11.21
Mass (M⊕)	1.00	355.97	317.83
Density (g/cm³)	5.51	0.76	1.33
Surface Gravity (g)	1.00	1.90	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	355.968 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 136512

HIP

HIP 75049

TIC

TIC 357502856

Gaia DR2

Gaia DR2 1275235752223276288

Gaia DR3

Gaia DR3 1275235752223276288

System

omi CrB

Percentile among Gas Giant cohort

Radius 13.700 R⊕ · percentile 66 / cohort 1771

Mass 355.968 M⊕ · percentile 38 / cohort 1747

Orbital period 187.01 d · percentile 57 / cohort 1533

Distance 84.79 pc · percentile 31 / cohort 1759

ESI 0.319 · percentile 63 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

187.010 days

Semi-major axis

0.6990 AU

Eccentricity

0.105

Inclination

— °

Year Length

A year here lasts approximately 187.01 Earth days (51.2% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.6990 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.319

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Sato et al. 2012

Instrument

HIDES Echelle Spectrograph

Publication

2012-12

Observation locale

Ground

Discovery cohort

Planets confirmed in 2012 at Okayama Astrophysical Observatory (5 shown).

omi UMa b · Gas Giant 75 Cet b · Gas Giant HD 5608 b · Gas Giant nu Oph b · Gas Giant nu Oph c · Gas Giant

Host System: omi CrB

Spectral Class

K-type orange

Effective Temperature

4,769 K — cooler than the Sun (5,778 K)

Estimated Age

7.83 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

11.870 R☉

Stellar Mass

1.300 M☉

Metallicity [Fe/H]

-0.27

Extended Stellar Properties

Surface gravity (log g)

2.360 dex

Systemic radial velocity

-53.70 km/s

Rotational v·sin i

2.30 km/s

Metallicity ratio

[Fe/H]

Distance

84.79 parsec

Light-years 276.54 ly

V-band magnitude

5.51 mag

Voyager-speed travel 4,876,820 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

11.766 mas

Total Proper Motion

125.572 mas/yr

PM Right Ascension

-118.05 mas/yr

PM Declination

-42.81 mas/yr

Galactic Cartesian (pc)

x = -0.558 · y = -0.666 · z = 0.494

Equatorial (J2000)

RA 230.03508° · Dec 29.61602°

Galactic ℓ, b

46.209° · 57.334°

Ecliptic λ, β

216.599° · 45.926°

HTM-20 index

-1288834726

Observation Record

Photometric series

RV measurements

Archive notes

Similar Worlds

BD+15 2940 b

Gas Giant · K-type orange

Radius 13.70 R⊕ · 1,390.8 ly

HD 116029 c

Gas Giant · K-type orange

Radius 13.70 R⊕ · 402.0 ly

HD 114783 b

Gas Giant · K-type orange

Radius 13.70 R⊕ · 68.7 ly

HD 208897 b

Gas Giant · K-type orange

Radius 13.70 R⊕ · 220.1 ly

HD 100508 b

Gas Giant · K-type orange

Radius 13.70 R⊕ · 106.8 ly

HD 5608 b

Gas Giant · K-type orange

Radius 13.70 R⊕ · 189.5 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Okayama Astrophysical Observatory Mission K-type orange Hosts