Key parameters at a glance
- A radius of 3.38 Earth radii
- A mass of 11.40 Earth masses
- Surface gravity around 1.00 g
- An orbital period of 16.088 days
- Semi-major axis 0.1320 AU
- Equilibrium temperature 875 K (602 °C)
- Distance from Earth 6,634.83 light-years
- Earth Similarity Index 0.256
- Travel time at Voyager 1 speed 117,005,193 years
2 siblings around Kepler-275
Kepler-275 c shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-275 b | Sub-Neptune | 2.34 | 6.08 | 10.301 | 1,015 | 2014 |
| Kepler-275 c this | Sub-Neptune | 3.38 | 11.40 | 16.088 | 875 | 2014 |
| Kepler-275 d | Sub-Neptune | 3.33 | 11.10 | 35.676 | 671 | 2014 |
Kepler-275 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#230of 1978
top 11.6%
This planet
3.38R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-275 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.38 | 11.21 |
| Mass (M⊕) | 1.00 | 11.40 | 317.83 |
| Density (g/cm³) | 5.51 | 1.62 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.00 | 2.53 |
| Insolation (S⊕) | 1.00 | 146.50 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137634395
Gaia DR2
Gaia DR2 2051950454223150720
Gaia DR3
Gaia DR3 2051950454223150720
System
Kepler-275
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 16.09 Earth days (4.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1320 AU.
Transit Fingerprint
Depth
0.060 %
Duration
5.888 h
Impact parameter b
0.060
Rp / R★
0.023680
Transit midpoint (BJD)
2,454,972.4975
Photometric dip
Transit produces a flux drop of 598 ppm lasting ≈ 5.89 h.
Extended Orbital Architecture
Planet / star radius ratio
0.023680
Semi-major axis / stellar radius
22.020
Impact parameter (b)
0.060
Transit mid-time (BJD)
2,454,972.4975
Angular separation (arcsec)
0.06490
Eq. Temperature
875K
(602 °C)
Insolation (S⊕)
146.50
Earth = 1.00
Earth Similarity (ESI)
0.256
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Discovery Paper
Primary reference
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-275
Spectral Class
F-type yellow-white
Effective Temperature
6,165 K — hotter than the Sun (5,778 K)
Estimated Age
3.39 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.383 R☉
Stellar Mass
1.189 M☉
Metallicity [Fe/H]
0.08
Extended Stellar Properties
Surface gravity (log g)
4.229 dex
Stellar density
0.470 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.464 mas
Total Proper Motion
1.637 mas/yr
PM Right Ascension
-0.69 mas/yr
PM Declination
-1.49 mas/yr
Galactic Cartesian (pc)
x = 0.299 · y = -0.723 · z = 0.623
Equatorial (J2000)
RA 292.47970° · Dec 38.51490°
Galactic ℓ, b
71.441° · 9.647°
Ecliptic λ, β
305.743° · 59.196°
HTM-20 index
1165062165
Similar Worlds
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Sub-Neptune · F-type yellow-white
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Kepler-340 c
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Kepler-1165 c
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Kepler-1510 b
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Kepler-1360 b
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Kepler-1051 b
Sub-Neptune · F-type yellow-white
Radius 3.40 R⊕ · 2,705.0 ly