Key parameters at a glance
- A radius of 13.20 Earth radii
- A mass of 854.96 Earth masses
- Surface gravity around 4.91 g
- An orbital period of 55.013 days
- Semi-major axis 0.2770 AU
- Distance from Earth 152.60 light-years
- Earth Similarity Index 0.389
- Travel time at Voyager 1 speed 2,691,042 years
1 sibling around HD 37605
HD 37605 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 37605 b this | Gas Giant | 13.20 | 854.96 | 55.013 | — | 2004 |
| HD 37605 c | Gas Giant | 13.10 | 1,013.88 | 2,720.000 | — | 2012 |
HD 37605 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#847of 1771
top 47.8%
This planet
13.20R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | HD 37605 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.20 | 11.21 |
| Mass (M⊕) | 1.00 | 854.96 | 317.83 |
| Density (g/cm³) | 5.51 | 2.04 | 1.33 |
| Surface Gravity (g) | 1.00 | 4.91 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Minimum mass (M sin i) | 854.963 M⊕ | Lower bound from radial-velocity fitting. |
Star Catalogue Identifiers
HD
HD 37605
HIP
HIP 26664
TIC
TIC 144730053
Gaia DR2
Gaia DR2 3332911492327546368
Gaia DR3
Gaia DR3 3332911492327546368
System
HD 37605
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 55.01 Earth days (15.1% of a terrestrial year) on a highly eccentric trajectory at a mean orbital distance of 0.2770 AU.
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.389
0 = alien, 1 = Earth-identical
Discovery Paper
Primary reference
Cochran et al. 2004Instrument
High Resolution Spectrograph
Publication
2004-08
Observation locale
Ground
Discovery cohort
Planets confirmed in 2004 at McDonald Observatory (2 shown).
Host System: HD 37605
Spectral Class
K-type orange
Effective Temperature
5,329 K — cooler than the Sun (5,778 K)
Estimated Age
5.65 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.910 R☉
Stellar Mass
0.940 M☉
Metallicity [Fe/H]
0.27
Extended Stellar Properties
Surface gravity (log g)
4.511 dex
Stellar density
1.368 g/cm³
Systemic radial velocity
-21.81 km/s
Rotational v·sin i
1.00 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
21.345 mas
Total Proper Motion
252.760 mas/yr
PM Right Ascension
52.47 mas/yr
PM Declination
-247.26 mas/yr
Galactic Cartesian (pc)
x = 0.087 · y = 0.991 · z = 0.106
Equatorial (J2000)
RA 85.00743° · Dec 6.05951°
Galactic ℓ, b
199.106° · -12.896°
Ecliptic λ, β
84.796° · -17.290°
HTM-20 index
1116198880
Observation Record
Photometric series
1
RV measurements
4
Stellar spectra
1
Archive notes
2
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