Key parameters at a glance
- A radius of 14.57 Earth radii
- A mass of 155.74 Earth masses
- Surface gravity around 0.73 g
- An orbital period of 9.175 days
- Semi-major axis 0.0916 AU
- Equilibrium temperature 1,586 K (1313 °C)
- Distance from Earth 1,988.96 light-years
- Earth Similarity Index 0.067
- Travel time at Voyager 1 speed 35,075,272 years
- Almost certainly tidally locked to its host star given the close orbit
K2-132 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#270of 1771
top 15.2%
This planet
14.57R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | K2-132 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 14.57 | 11.21 |
| Mass (M⊕) | 1.00 | 155.74 | 317.83 |
| Density (g/cm³) | 5.51 | 0.28 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.73 | 2.53 |
| Insolation (S⊕) | 1.00 | 293.37 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 155.737 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 152852327
Gaia DR2
Gaia DR2 3582339626395387264
Gaia DR3
Gaia DR3 3582339626395387264
System
K2-132
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 9.18 Earth days (2.5% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0916 AU.
Transit Fingerprint
Depth
0.058 %
Duration
7.169 h
Impact parameter b
0.848
Rp / R★
0.032500
Transit midpoint (BJD)
2,457,590.1491
Photometric dip
Transit produces a flux drop of 580 ppm lasting ≈ 7.17 h.
Extended Orbital Architecture
Planet / star radius ratio
0.032500
Semi-major axis / stellar radius
4.800
Impact parameter (b)
0.848
RV semi-amplitude (K)
42.100 m/s
Transit mid-time (BJD)
2,457,590.1491
Long. of periastron (ω)
82.60°
Angular separation (arcsec)
0.15000
Eq. Temperature
1,586K
(1313 °C)
Insolation (S⊕)
293.37
Earth = 1.00
Earth Similarity (ESI)
0.067
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched. 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
Grunblatt et al. 2017Instrument
Kepler CCD Array
Publication
2017-12
Observation locale
Space
Discovery cohort
Planets confirmed in 2017 at K2 (12 shown).
Host System: K2-132
Spectral Class
K-type orange
Effective Temperature
4,840 K — cooler than the Sun (5,778 K)
Estimated Age
8.50 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
3.850 R☉
Stellar Mass
1.080 M☉
Metallicity [Fe/H]
-0.01
Extended Stellar Properties
Surface gravity (log g)
3.297 dex
Stellar density
0.026 g/cm³
Systemic radial velocity
10.37 km/s
Rotational v·sin i
3.36 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
1.612 mas
Total Proper Motion
29.633 mas/yr
PM Right Ascension
-28.32 mas/yr
PM Declination
-8.73 mas/yr
Galactic Cartesian (pc)
x = -0.988 · y = -0.037 · z = -0.152
Equatorial (J2000)
RA 182.16627° · Dec -8.74722°
Galactic ℓ, b
285.334° · 52.657°
Ecliptic λ, β
185.477° · -7.161°
HTM-20 index
290293422
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