Key parameters at a glance
- A radius of 1.48 Earth radii
- A mass of 2.79 Earth masses
- Surface gravity around 1.27 g
- An orbital period of 1.970 days
- Semi-major axis 0.0290 AU
- Equilibrium temperature 1,599 K (1326 °C)
- Distance from Earth 1,389.71 light-years
- Earth Similarity Index 0.176
- Travel time at Voyager 1 speed 24,507,562 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around Kepler-975
Kepler-975 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 |
|---|---|---|---|---|---|---|
| Kepler-975 b this | Super-Earth | 1.48 | 2.79 | 1.970 | 1,599 | 2016 |
| Kepler-975 c | Gas Giant | 10.69 | 80.20 | 5.058 | 1,168 | 2023 |
Kepler-975 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#784of 1176
top 66.6%
This planet
1.48R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-975 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.48 | 11.21 |
| Mass (M⊕) | 1.00 | 2.79 | 317.83 |
| Density (g/cm³) | 5.51 | 4.73 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.27 | 2.53 |
| Insolation (S⊕) | 1.00 | 328.70 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 122450762
Gaia DR2
Gaia DR2 2052826318309391104
Gaia DR3
Gaia DR3 2052826318309391104
System
Kepler-975
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.97 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0290 AU.
Transit Fingerprint
Depth
0.040 %
Duration
1.738 h
Impact parameter b
0.830
Rp / R★
0.018405
Transit midpoint (BJD)
2,454,964.9478
Photometric dip
Transit produces a flux drop of 403 ppm lasting ≈ 1.74 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018405
Semi-major axis / stellar radius
4.900
Impact parameter (b)
0.830
Transit mid-time (BJD)
2,454,964.9478
Angular separation (arcsec)
0.06800
Eq. Temperature
1,599K
(1326 °C)
Insolation (S⊕)
328.70
Earth = 1.00
Earth Similarity (ESI)
0.176
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.
Discovery Paper
Primary reference
Morton et al. 2016Instrument
Kepler CCD Array
Publication
2016-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-975
Spectral Class
K-type orange
Effective Temperature
4,897 K — cooler than the Sun (5,778 K)
Estimated Age
3.89 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.750 R☉
Stellar Mass
0.800 M☉
Metallicity [Fe/H]
0.07
Extended Stellar Properties
Surface gravity (log g)
4.590 dex
Stellar density
1.750 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
2.318 mas
Total Proper Motion
8.971 mas/yr
PM Right Ascension
-3.72 mas/yr
PM Declination
-8.16 mas/yr
Galactic Cartesian (pc)
x = 0.275 · y = -0.733 · z = 0.622
Equatorial (J2000)
RA 290.54851° · Dec 38.49524°
Galactic ℓ, b
70.736° · 10.990°
Ecliptic λ, β
302.887° · 59.610°
HTM-20 index
1938318411
Similar Worlds
EPIC 212297394 b
Super-Earth · K-type orange
Radius 1.48 R⊕ · 1,364.6 ly
Kepler-99 b
Super-Earth · K-type orange
Radius 1.48 R⊕ · 679.6 ly
K2-83 c
Super-Earth · K-type orange
Radius 1.48 R⊕ · 409.4 ly
Kepler-1826 b
Super-Earth · K-type orange
Radius 1.48 R⊕ · 1,099.0 ly
Kepler-1756 b
Super-Earth · K-type orange
Radius 1.47 R⊕ · —
Kepler-1841 b
Super-Earth · K-type orange
Radius 1.49 R⊕ · 2,060.3 ly