Gas giant · 11 Com

11 Com b

ExoplanetsDiscovered 2007

Scientific overview

11 Com b is a gas giant orbiting 11 Com, completing an orbit every 323 days, about 304 light-years from Earth. It was discovered in 2007 using the radial velocity method.

Host star

11 Comae Berenices

Spectral type

G8 III

Temperature

4,874 K

Mass

2.09 M☉

Discovery and detection

Detection method

Radial Velocity Method

Discovery year

2007

Knowledge connections

Orbits11 Comae Berenices
Discovered by methodRadial Velocity Method
Catalogued inNASA Exoplanet Archive

Quick facts

Class: Gas giant
Host star: 11 Comae Berenices
Discovery method: Radial Velocity Method
Discovery year: 2007
Orbital period: 323.21 d
Semi-major axis: 1.178 AU
Eccentricity: 0.238
Radius: 12.2 R⊕
Mass: 4914.9 M⊕
Density: 14.92 g/cm³ · derived
Equilibrium temp.: 803 K
Insolation: 68.54 S⊕
Distance: 304 ly

Density is derived from the archive mass and radius via ρ = M / (4⁄3·π·r³); all other values are catalogued measurements.

Derived values

Computed from source-backed inputs via standard formulae — not observations. Every input and constant is traced below.

Bulk density14.92 g/cm³derived
Formula & inputs
Formula: ρ = M / (4⁄3·π·r³) (v1.0.0, impl v1.0.0)
Inputs:
- massEarth = 4914.9 M⊕ · NASA
- radiusEarth = 12.2 R⊕ · NASA
Assumptions: M⊕ = 5.972e+24 kg, R⊕ = 6371000 m (IAU 2015 B3 nominal); Assumes a uniform sphere.
Limitations: Withheld above 30 g/cm³ (inconsistent mass/radius inputs).; Archive mass/radius carry no propagated uncertainty here.
Uncertainty: not propagated (inputs carry no catalogued uncertainty)
Computed as of 2026-06-29.

Quality & authority

Partial

Unreviewed

Description: Complete
Source coverage: Partial
Relationship coverage: Complete
Review coverage: None
Citation coverage: None
Image coverage: Not applicable

Data from the NASA Exoplanet Archive. See source quality.