Key parameters at a glance
- A radius of 3.33 Earth radii
- A mass of 11.10 Earth masses
- Surface gravity around 1.00 g
- An orbital period of 35.676 days
- Semi-major axis 0.2240 AU
- Equilibrium temperature 671 K (398 °C)
- Distance from Earth 6,634.83 light-years
- Earth Similarity Index 0.337
- Travel time at Voyager 1 speed 117,005,193 years
2 siblings around Kepler-275
Kepler-275 d 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 | Sub-Neptune | 3.38 | 11.40 | 16.088 | 875 | 2014 |
| Kepler-275 d this | Sub-Neptune | 3.33 | 11.10 | 35.676 | 671 | 2014 |
Kepler-275 d Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#261of 1978
top 13.1%
This planet
3.33R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-275 d | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.33 | 11.21 |
| Mass (M⊕) | 1.00 | 11.10 | 317.83 |
| Density (g/cm³) | 5.51 | 1.65 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.00 | 2.53 |
| Insolation (S⊕) | 1.00 | 50.70 | 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 35.68 Earth days (9.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2240 AU.
Transit Fingerprint
Depth
0.047 %
Duration
7.634 h
Impact parameter b
0.730
Rp / R★
0.022012
Transit midpoint (BJD)
2,454,978.0007
Photometric dip
Transit produces a flux drop of 471 ppm lasting ≈ 7.63 h.
Extended Orbital Architecture
Planet / star radius ratio
0.022012
Semi-major axis / stellar radius
32.500
Impact parameter (b)
0.730
Transit mid-time (BJD)
2,454,978.0007
Angular separation (arcsec)
0.11000
Eq. Temperature
671K
(398 °C)
Insolation (S⊕)
50.70
Earth = 1.00
Earth Similarity (ESI)
0.337
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
Kepler-264 b
Sub-Neptune · F-type yellow-white
Radius 3.33 R⊕ · 3,073.0 ly
Kepler-1830 b
Sub-Neptune · F-type yellow-white
Radius 3.33 R⊕ · 3,447.1 ly
Kepler-620 b
Sub-Neptune · F-type yellow-white
Radius 3.32 R⊕ · 4,420.3 ly
Kepler-606 b
Sub-Neptune · F-type yellow-white
Radius 3.31 R⊕ · 3,963.2 ly
DMPP-1 c
Sub-Neptune · F-type yellow-white
Radius 3.31 R⊕ · 204.0 ly
Kepler-1510 b
Sub-Neptune · F-type yellow-white
Radius 3.36 R⊕ · 5,532.4 ly