Confirmed Exoplanet Discovered 2006

Oph 11 b

A gas giant orbiting the m-type red dwarf Oph 11, located approximately 444.1 light-years from Earth.

Key parameters at a glance

  • A radius of 12.30 Earth radii
  • A mass of 4,449.62 Earth masses
  • Surface gravity around 29.41 g
  • An orbital period of 7,300,000.000 days
  • Semi-major axis 243.0000 AU
  • Equilibrium temperature 2,175 K (1902 °C)
  • Distance from Earth 444.11 light-years
  • Earth Similarity Index 0.058
  • Travel time at Voyager 1 speed 7,831,919 years

Oph 11 b Planet Profile

Physical Specs

Radius
12.30 R⊕
Radius (Jupiter)
1.100 R♃
Mass
4,449.62 M⊕
Mass (Jupiter)
14.000 M♃
Density
13.10 g/cm³
Surface Gravity
29.41 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.058
HZ Position Unknown
Controversial No

Discovery

Year 2006
Method Imaging
Facility Gemini Observatory
Telescope 8.19 m Gemini North Telescope

Size rank in cohort

Rank by radius

#1349of 1771

top 76.1%

This planet

12.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HAT-P-13 c 12.30 R⊕ HD 22781 b 12.30 R⊕ CHXR 73 b 12.30 R⊕
Metric Earth Oph 11 b Jupiter
Radius (R⊕)1.0012.3011.21
Mass (M⊕)1.004,449.62317.83
Density (g/cm³)5.5113.101.33
Surface Gravity (g)1.0029.412.53
Insolation (S⊕)1.00—0.037

Alternative Mass Estimates

Method Value Interpretation
Best measured mass 4,449.620 M⊕ Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 392045047

Gaia DR2

Gaia DR2 6049407594709184256

Gaia DR3

Gaia DR3 6049407594709184256

System

Oph 11

Percentile among Gas Giant cohort

Radius 12.300 R⊕ · percentile 22 / cohort 1771
Mass 4,449.620 M⊕ · percentile 93 / cohort 1747
Orbital period 7,300,000.00 d · percentile 100 / cohort 1533
Distance 136.17 pc · percentile 41 / cohort 1759
ESI 0.058 · percentile 8 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period
7,300,000.000 days
Semi-major axis
243.0000 AU
Eccentricity
—
Inclination
— °

Year Length

A year here lasts about 19986.31 Earth years at a mean orbital distance of 243.0000 AU.

Eq. Temperature

2,175K

(1902 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.058

0 = alien, 1 = Earth-identical

Insufficient insolation data — the dayside is scorched.

Discovery Paper

Primary reference

Close et al. 2007

Instrument

NIRI Camera

Publication

2007-05

Observation locale

Ground

Host System: Oph 11

Spectral Class

M-type red dwarf

Effective Temperature

2,375 K — cooler than the Sun (5,778 K)

Estimated Age

5.00 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.233 R☉

Stellar Mass

0.016 M☉

Metallicity [Fe/H]

—

Distance
136.17 parsec
Light-years 444.11 ly
V-band magnitude
— mag
Voyager-speed travel 7,831,919 yr

Multi-band Host Photometry — 9 bands

7.918.918.91Gaia16.98TESS14.47J13.80H13.42K12.81W112.37W211.88W37.87W4

Astrometric Data

Parallax

7.344 mas

Total Proper Motion

6.197 mas/yr

PM Right Ascension

-2.98 mas/yr

PM Declination

-5.43 mas/yr

Galactic Cartesian (pc)

x = -0.377 · y = -0.831 · z = -0.408

Equatorial (J2000)

RA 245.60496° · Dec -24.08722°

Galactic ℓ, b

352.679° · 17.803°

Ecliptic λ, β

247.822° · -2.506°

HTM-20 index

431770170

Similar Worlds

USco CTIO 108 b

Gas Giant · M-type red dwarf

Radius 12.30 R⊕ · 469.7 ly

USco1556 b

Gas Giant · M-type red dwarf

Radius 12.30 R⊕ · 458.7 ly

HIP 81208 C b

Gas Giant · M-type red dwarf

Radius 12.30 R⊕ · 481.2 ly

2MASS J01033563-5515561 AB b

Gas Giant · M-type red dwarf

Radius 12.30 R⊕ · 153.9 ly

CHXR 73 b

Gas Giant · M-type red dwarf

Radius 12.30 R⊕ · 620.9 ly

GJ 676 A c

Gas Giant · M-type red dwarf

Radius 12.30 R⊕ · 52.3 ly

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