Key parameters at a glance
- A radius of 10.55 Earth radii
- A mass of 734.16 Earth masses
- Surface gravity around 6.60 g
- An orbital period of 3.161 days
- Semi-major axis 0.0373 AU
- Distance from Earth 2,439.51 light-years
- Earth Similarity Index 0.455
- Travel time at Voyager 1 speed 43,020,812 years
- Almost certainly tidally locked to its host star given the close orbit
POTS-1 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#1722of 1771
top 97.2%
This planet
10.55R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | POTS-1 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 10.55 | 11.21 |
| Mass (M⊕) | 1.00 | 734.16 | 317.83 |
| Density (g/cm³) | 5.51 | 3.44 | 1.33 |
| Surface Gravity (g) | 1.00 | 6.60 | 2.53 |
| Insolation (S⊕) | 1.00 | — | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 734.160 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 341694238
Gaia DR2
Gaia DR2 5851616143098057472
Gaia DR3
Gaia DR3 5851616143098057472
System
POTS-1
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.16 Earth days (0.9% of a terrestrial year) at a mean orbital distance of 0.0373 AU.
Transit Fingerprint
Impact parameter b
0.459
Rp / R★
0.164320
Transit midpoint (BJD)
2,454,231.6549
Extended Orbital Architecture
Planet / star radius ratio
0.164320
Impact parameter (b)
0.459
RV semi-amplitude (K)
407.000 m/s
Transit mid-time (BJD)
2,454,231.6549
Angular separation (arcsec)
0.04990
Eq. Temperature
—
Insolation (S⊕)
—
Earth = 1.00
Earth Similarity (ESI)
0.455
0 = alien, 1 = Earth-identical
Insufficient insolation data. Close-orbiting tidally-locked around a cool host.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Discovery Paper
Primary reference
Koppenhoefer et al. 2013Instrument
WFI Camera
Publication
2013-11
Observation locale
Ground
Discovery cohort
Planets confirmed in 2013 at La Silla Observatory (10 shown).
Host System: POTS-1
Spectral Class
K-type orange
Effective Temperature
4,400 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.588 R☉
Stellar Mass
0.695 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
4.630 dex
Stellar density
4.814 g/cm³
Systemic radial velocity
-16.23 km/s
Rotational v·sin i
5.30 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
1.316 mas
Total Proper Motion
18.316 mas/yr
PM Right Ascension
-17.81 mas/yr
PM Declination
-4.27 mas/yr
Galactic Cartesian (pc)
x = -0.364 · y = -0.159 · z = -0.918
Equatorial (J2000)
RA 203.60873° · Dec -66.58116°
Galactic ℓ, b
307.194° · -4.066°
Ecliptic λ, β
234.522° · -51.131°
HTM-20 index
-916322350
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