Key parameters at a glance
- A radius of 13.40 Earth radii
- A mass of 629.30 Earth masses
- Surface gravity around 3.50 g
- An orbital period of 144.300 days
- Semi-major axis 0.7200 AU
- Distance from Earth 343.05 light-years
- Earth Similarity Index 0.365
- Travel time at Voyager 1 speed 6,049,702 years
HIP 107773 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#730of 1771
top 41.2%
This planet
13.40R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HIP 107773 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.40 | 11.21 |
| Mass (M⊕) | 1.00 | 629.30 | 317.83 |
| Density (g/cm³) | 5.51 | 1.44 | 1.33 |
| Surface Gravity (g) | 1.00 | 3.50 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 629.303 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 207229
HIP
HIP 107773
TIC
TIC 406320735
Gaia DR2
Gaia DR2 6402076022332085760
Gaia DR3
Gaia DR3 6402076022332085760
System
HIP 107773
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 144.30 Earth days (39.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.7200 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.365
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Jones et al. 2015Instrument
Multiple Instruments
Publication
2015-08
Observation locale
Ground
Discovery cohort
Planets confirmed in 2015 at Multiple Observatories (8 shown).
Host System: HIP 107773
Spectral Class
K-type orange
Effective Temperature
4,945 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
11.600 R☉
Stellar Mass
2.420 M☉
Metallicity [Fe/H]
0.03
Extended Stellar Properties
Surface gravity (log g)
2.600 dex
Systemic radial velocity
-0.17 km/s
Rotational v·sin i
2.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
9.480 mas
Total Proper Motion
37.450 mas/yr
PM Right Ascension
-0.70 mas/yr
PM Declination
-37.44 mas/yr
Galactic Cartesian (pc)
x = 0.360 · y = -0.230 · z = -0.904
Equatorial (J2000)
RA 327.50051° · Dec -64.71270°
Galactic ℓ, b
327.402° · -42.798°
Ecliptic λ, β
302.280° · -47.585°
HTM-20 index
681124791
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