Key parameters at a glance
- A radius of 13.50 Earth radii
- A mass of 533.95 Earth masses
- Surface gravity around 2.93 g
- An orbital period of 2,892.000 days
- Semi-major axis 3.9630 AU
- Equilibrium temperature 150 K (-123 °C)
- Distance from Earth 52.21 light-years
- Earth Similarity Index 0.269
- Travel time at Voyager 1 speed 920,679 years
1 sibling around HD 190360
HD 190360 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| HD 190360 c | Neptune-like | 5.44 | 25.43 | 17.117 | — | 2005 |
| HD 190360 b this | Gas Giant | 13.50 | 533.95 | 2,892.000 | 150 | 2003 |
HD 190360 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#671of 1771
top 37.8%
This planet
13.50R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 190360 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.50 | 11.21 |
| Mass (M⊕) | 1.00 | 533.95 | 317.83 |
| Density (g/cm³) | 5.51 | 1.19 | 1.33 |
| Surface Gravity (g) | 1.00 | 2.93 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 533.952 M⊕ | Direct mass measurement (not derived). |
| Minimum mass (M sin i) | 460.854 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 190360
HIP
HIP 98767
TIC
TIC 105999792
Gaia DR2
Gaia DR2 2029433521248546304
Gaia DR3
Gaia DR3 2029433521248546304
System
HD 190360
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 7.92 Earth years on a highly eccentric trajectory at a mean orbital distance of 3.9630 AU.
Extended Orbital Architecture
RV semi-amplitude (K)
22.110 m/s
Transit mid-time (BJD)
2,456,762.4000
Long. of periastron (ω)
14.80°
Angular separation (arcsec)
248.00000
Eq. Temperature
150K
(-123 °C)
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.269
0 = alien, 1 = Earth-identical
Insufficient insolation data — surface water would be frozen.
Detection Signatures
Radial velocity
Stellar wobble has been measured spectroscopically.
Astrometry
Positional wobble of the host star was measured.
Discovery Paper
Primary reference
Naef et al. 2003Instrument
ELODIE Spectrograph
Publication
2003-11
Observation locale
Ground
Discovery cohort
Planets confirmed in 2003 at Haute-Provence Observatory (3 shown).
Host System: HD 190360
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,552 K — cooler than the Sun (5,778 K)
Estimated Age
11.30 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
1.201 R☉
Stellar Mass
0.991 M☉
Metallicity [Fe/H]
0.25
Extended Stellar Properties
Surface gravity (log g)
4.298 dex
Stellar density
0.867 g/cm³
Systemic radial velocity
-45.35 km/s
Rotational v·sin i
2.20 km/s
Activity index (log R'HK)
-5.090
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
62.444 mas
Total Proper Motion
862.142 mas/yr
PM Right Ascension
683.34 mas/yr
PM Declination
-525.68 mas/yr
Galactic Cartesian (pc)
x = 0.445 · y = -0.744 · z = 0.498
Equatorial (J2000)
RA 300.90925° · Dec 29.89454°
Galactic ℓ, b
67.411° · -0.676°
Ecliptic λ, β
312.602° · 48.864°
HTM-20 index
-1211378946
Observation Record
Photometric series
1
RV measurements
4
Stellar spectra
6
Archive notes
6
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