Key parameters at a glance
- A radius of 14.20 Earth radii
- A mass of 174.49 Earth masses
- Surface gravity around 0.87 g
- An orbital period of 345.430 days
- Semi-major axis 0.9020 AU
- Distance from Earth 112.05 light-years
- Earth Similarity Index 0.260
- Travel time at Voyager 1 speed 1,975,960 years
1 sibling around HD 45364
HD 45364 c 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 45364 b | Neptune-like | 9.03 | 60.16 | 225.790 | — | 2008 |
| HD 45364 c this | Gas Giant | 14.20 | 174.49 | 345.430 | — | 2008 |
HD 45364 c Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#334of 1771
top 18.8%
This planet
14.20R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 45364 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.20 | 11.21 |
| Mass (M⊕) | 1.00 | 174.49 | 317.83 |
| Density (g/cm³) | 5.51 | 0.34 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.87 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 174.488 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 45364
HIP
HIP 30579
TIC
TIC 117768715
Gaia DR2
Gaia DR2 2893174259322992256
Gaia DR3
Gaia DR3 2893174259322992256
System
HD 45364
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 345.43 Earth days (94.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.9020 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.260
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Correia et al. 2009Instrument
HARPS Spectrograph
Publication
2009-03
Observation locale
Ground
Discovery cohort
Planets confirmed in 2008 at La Silla Observatory (12 shown).
Host System: HD 45364
Spectral Class
K-type orange
Effective Temperature
5,466 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.890 R☉
Stellar Mass
0.820 M☉
Metallicity [Fe/H]
-0.17
Extended Stellar Properties
Surface gravity (log g)
4.380 dex
Stellar density
1.836 g/cm³
Systemic radial velocity
16.31 km/s
Rotational v·sin i
1.00 km/s
Rotation period
32.00 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
29.080 mas
Total Proper Motion
53.527 mas/yr
PM Right Ascension
52.18 mas/yr
PM Declination
-11.93 mas/yr
Galactic Cartesian (pc)
x = -0.095 · y = 0.847 · z = -0.522
Equatorial (J2000)
RA 96.41057° · Dec -31.48100°
Galactic ℓ, b
239.355° · -18.867°
Ecliptic λ, β
99.483° · -54.709°
HTM-20 index
-1379092737
Similar Worlds
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HIP 5763 b
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HIP 57274 c
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HIP 57274 d
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HD 102195 b
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BD+42 2315 b
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