Key parameters at a glance
- A radius of 13.10 Earth radii
- A mass of 1,080.62 Earth masses
- Surface gravity around 6.30 g
- An orbital period of 3,459.000 days
- Semi-major axis 3.5300 AU
- Distance from Earth 59.87 light-years
- Earth Similarity Index 0.405
- Travel time at Voyager 1 speed 1,055,759 years
GJ 463 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#910of 1771
top 51.3%
This planet
13.10R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | GJ 463 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.10 | 11.21 |
| Mass (M⊕) | 1.00 | 1,080.62 | 317.83 |
| Density (g/cm³) | 5.51 | 2.64 | 1.33 |
| Surface Gravity (g) | 1.00 | 6.30 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 1,080.617 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 524.099 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HIP
HIP 60398
TIC
TIC 147670988
Gaia DR2
Gaia DR2 1584088431025057792
Gaia DR3
Gaia DR3 1584088431025057792
System
GJ 463
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 9.47 Earth years on a mildly elliptical path at a mean orbital distance of 3.5300 AU.
Extended Orbital Architecture
RV semi-amplitude (K)
36.270 m/s
Transit mid-time (BJD)
2,454,313.0000
Long. of periastron (ω)
329.30°
Angular separation (arcsec)
192.00000
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.405
0 = alien, 1 = Earth-identical
Detection Signatures
Radial velocity
Stellar wobble has been measured spectroscopically.
Astrometry
Positional wobble of the host star was measured.
Discovery Paper
Primary reference
Endl et al. 2022Instrument
Multiple Instruments
Publication
2022-12
Observation locale
Ground
Discovery cohort
Planets confirmed in 2022 at Multiple Observatories (12 shown).
Host System: GJ 463
Spectral Class
M-type red dwarf
Effective Temperature
3,563 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.483 R☉
Stellar Mass
0.486 M☉
Metallicity [Fe/H]
-0.16
Extended Stellar Properties
Surface gravity (log g)
4.860 dex
Stellar density
6.231 g/cm³
Rotational v·sin i
2.00 km/s
Rotation period
32.90 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 13 bands
Astrometric Data
Parallax
54.451 mas
Total Proper Motion
769.866 mas/yr
PM Right Ascension
-673.25 mas/yr
PM Declination
373.40 mas/yr
Galactic Cartesian (pc)
x = -0.436 · y = -0.044 · z = 0.899
Equatorial (J2000)
RA 185.74405° · Dec 64.03243°
Galactic ℓ, b
128.080° · 52.810°
Ecliptic λ, β
143.920° · 57.382°
HTM-20 index
1402844090
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