Key parameters at a glance
- A radius of 1.35 Earth radii
- A mass of 2.39 Earth masses
- Surface gravity around 1.31 g
- An orbital period of 6.494 days
- Semi-major axis 0.0612 AU
- Equilibrium temperature 732 K (459 °C)
- Distance from Earth 1,903.58 light-years
- Earth Similarity Index 0.427
- Travel time at Voyager 1 speed 33,569,634 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1265 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#996of 1176
top 84.6%
This planet
1.35R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1265 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.35 | 11.21 |
| Mass (M⊕) | 1.00 | 2.39 | 317.83 |
| Density (g/cm³) | 5.51 | 5.34 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.31 | 2.53 |
| Insolation (S⊕) | 1.00 | 58.15 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164781761
Gaia DR2
Gaia DR2 2107385081710305152
Gaia DR3
Gaia DR3 2107385081710305152
System
Kepler-1265
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 6.49 Earth days (1.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0612 AU.
Transit Fingerprint
Depth
0.036 %
Duration
2.243 h
Impact parameter b
0.345
Rp / R★
0.018177
Transit midpoint (BJD)
2,454,965.2505
Photometric dip
Transit produces a flux drop of 357 ppm lasting ≈ 2.24 h.
Extended Orbital Architecture
Planet / star radius ratio
0.018177
Semi-major axis / stellar radius
9.820
Impact parameter (b)
0.345
Transit mid-time (BJD)
2,454,965.2505
Angular separation (arcsec)
0.10500
Eq. Temperature
732K
(459 °C)
Insolation (S⊕)
58.15
Earth = 1.00
Earth Similarity (ESI)
0.427
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. 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-1265
Spectral Class
K-type orange
Effective Temperature
4,630 K — cooler than the Sun (5,778 K)
Estimated Age
5.25 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.690 R☉
Stellar Mass
0.710 M☉
Metallicity [Fe/H]
-0.10
Extended Stellar Properties
Surface gravity (log g)
4.630 dex
Stellar density
4.270 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.685 mas
Total Proper Motion
6.851 mas/yr
PM Right Ascension
4.34 mas/yr
PM Declination
5.30 mas/yr
Galactic Cartesian (pc)
x = 0.171 · y = -0.659 · z = 0.732
Equatorial (J2000)
RA 284.58584° · Dec 47.07956°
Galactic ℓ, b
77.096° · 18.401°
Ecliptic λ, β
298.687° · 69.071°
HTM-20 index
-822090357
Similar Worlds
Kepler-935 b
Super-Earth · K-type orange
Radius 1.35 R⊕ · 1,538.7 ly
Kepler-330 b
Super-Earth · K-type orange
Radius 1.35 R⊕ · 2,340.3 ly
Kepler-1680 b
Super-Earth · K-type orange
Radius 1.36 R⊕ · 1,012.1 ly
Kepler-442 b
Super-Earth · K-type orange
Radius 1.34 R⊕ · 1,193.6 ly
Kepler-1246 b
Super-Earth · K-type orange
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Kepler-1459 b
Super-Earth · K-type orange
Radius 1.36 R⊕ · 1,485.6 ly