Key parameters at a glance
- A radius of 12.70 Earth radii
- A mass of 2,089.64 Earth masses
- Surface gravity around 12.96 g
- An orbital period of 192.000 days
- Semi-major axis 0.7470 AU
- Distance from Earth 2,762.73 light-years
- Earth Similarity Index 0.440
- Travel time at Voyager 1 speed 48,720,749 years
HD 233604 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1130of 1771
top 63.7%
This planet
12.70R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 233604 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 12.70 | 11.21 |
| Mass (M⊕) | 1.00 | 2,089.64 | 317.83 |
| Density (g/cm³) | 5.51 | 5.61 | 1.33 |
| Surface Gravity (g) | 1.00 | 12.96 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 2,089.644 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 233604
TIC
TIC 150184553
Gaia DR2
Gaia DR2 1023492257121204352
Gaia DR3
Gaia DR3 1023492257121204352
System
HD 233604
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 192.00 Earth days (52.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.7470 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.440
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Nowak et al. 2013Instrument
High Resolution Spectrograph
Publication
2013-06
Observation locale
Ground
Discovery cohort
Planets confirmed in 2013 at McDonald Observatory (2 shown).
Host System: HD 233604
Spectral Class
K-type orange
Effective Temperature
4,791 K — cooler than the Sun (5,778 K)
Estimated Age
2.40 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
10.900 R☉
Stellar Mass
1.500 M☉
Metallicity [Fe/H]
-0.36
Extended Stellar Properties
Surface gravity (log g)
2.550 dex
Systemic radial velocity
-73.75 km/s
Rotational v·sin i
2.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.151 mas
Total Proper Motion
19.834 mas/yr
PM Right Ascension
18.63 mas/yr
PM Declination
-6.82 mas/yr
Galactic Cartesian (pc)
x = -0.438 · y = 0.402 · z = 0.805
Equatorial (J2000)
RA 137.45351° · Dec 53.56820°
Galactic ℓ, b
163.935° · 41.832°
Ecliptic λ, β
122.432° · 35.341°
HTM-20 index
988658908
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