Key parameters at a glance
- A radius of 2.44 Earth radii
- A mass of 6.53 Earth masses
- Surface gravity around 1.10 g
- An orbital period of 2.337 days
- Semi-major axis 0.0325 AU
- Equilibrium temperature 1,070 K (797 °C)
- Distance from Earth 2,171.16 light-years
- Earth Similarity Index 0.234
- Travel time at Voyager 1 speed 38,288,321 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-675 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1269of 1978
top 64.1%
This planet
2.44R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-675 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.44 | 11.21 |
| Mass (M⊕) | 1.00 | 6.53 | 317.83 |
| Density (g/cm³) | 5.51 | 2.47 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.10 | 2.53 |
| Insolation (S⊕) | 1.00 | 308.55 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 27006665
Gaia DR2
Gaia DR2 2135124213891990912
Gaia DR3
Gaia DR3 2135124213891990912
System
Kepler-675
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 2.34 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0325 AU.
Transit Fingerprint
Depth
0.097 %
Duration
2.014 h
Impact parameter b
0.494
Rp / R★
0.029935
Transit midpoint (BJD)
2,455,004.7618
Photometric dip
Transit produces a flux drop of 971 ppm lasting ≈ 2.01 h.
Extended Orbital Architecture
Planet / star radius ratio
0.029935
Semi-major axis / stellar radius
8.860
Impact parameter (b)
0.494
Transit mid-time (BJD)
2,455,004.7618
Angular separation (arcsec)
0.04880
Eq. Temperature
1,070K
(797 °C)
Insolation (S⊕)
308.55
Earth = 1.00
Earth Similarity (ESI)
0.234
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-675
Spectral Class
K-type orange
Effective Temperature
4,945 K — cooler than the Sun (5,778 K)
Estimated Age
4.68 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.750 R☉
Stellar Mass
0.790 M☉
Metallicity [Fe/H]
-0.05
Extended Stellar Properties
Surface gravity (log g)
4.600 dex
Stellar density
1.805 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.474 mas
Total Proper Motion
15.287 mas/yr
PM Right Ascension
14.40 mas/yr
PM Declination
5.13 mas/yr
Galactic Cartesian (pc)
x = 0.258 · y = -0.585 · z = 0.769
Equatorial (J2000)
RA 293.83345° · Dec 50.23035°
Galactic ℓ, b
82.597° · 14.011°
Ecliptic λ, β
318.195° · 69.711°
HTM-20 index
521519162
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