Key parameters at a glance
- A radius of 2.01 Earth radii
- A mass of 4.70 Earth masses
- Surface gravity around 1.16 g
- An orbital period of 8.187 days
- Semi-major axis 0.0750 AU
- Equilibrium temperature 782 K (509 °C)
- Distance from Earth 2,046.19 light-years
- Earth Similarity Index 0.351
- Travel time at Voyager 1 speed 36,084,534 years
1 sibling around Kepler-260
Kepler-260 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-260 b this | Sub-Neptune | 2.01 | 4.70 | 8.187 | 782 | 2014 |
| Kepler-260 c | Super-Earth | 1.74 | 3.68 | 76.050 | 372 | 2014 |
Kepler-260 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1940of 1978
top 98.0%
This planet
2.01R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-260 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.01 | 11.21 |
| Mass (M⊕) | 1.00 | 4.70 | 317.83 |
| Density (g/cm³) | 5.51 | 3.18 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.16 | 2.53 |
| Insolation (S⊕) | 1.00 | 132.13 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 137348863
Gaia DR2
Gaia DR2 2051907813786770688
Gaia DR3
Gaia DR3 2051907813786770688
System
Kepler-260
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 8.19 Earth days (2.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0750 AU.
Transit Fingerprint
Depth
0.057 %
Duration
3.027 h
Impact parameter b
0.460
Rp / R★
0.020743
Transit midpoint (BJD)
2,455,093.8677
Photometric dip
Transit produces a flux drop of 571 ppm lasting ≈ 3.03 h.
Extended Orbital Architecture
Planet / star radius ratio
0.020743
Semi-major axis / stellar radius
16.110
Impact parameter (b)
0.460
Transit mid-time (BJD)
2,455,093.8677
Angular separation (arcsec)
0.12000
Eq. Temperature
782K
(509 °C)
Insolation (S⊕)
132.13
Earth = 1.00
Earth Similarity (ESI)
0.351
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-260
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,250 K — cooler than the Sun (5,778 K)
Estimated Age
1.15 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.862 R☉
Stellar Mass
1.013 M☉
Metallicity [Fe/H]
0.29
Extended Stellar Properties
Surface gravity (log g)
4.494 dex
Stellar density
1.290 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 17 bands
Astrometric Data
Parallax
1.565 mas
Total Proper Motion
13.854 mas/yr
PM Right Ascension
-0.22 mas/yr
PM Declination
-13.85 mas/yr
Galactic Cartesian (pc)
x = 0.294 · y = -0.731 · z = 0.616
Equatorial (J2000)
RA 291.92597° · Dec 38.01405°
Galactic ℓ, b
70.788° · 9.807°
Ecliptic λ, β
304.651° · 58.844°
HTM-20 index
1973200587
Similar Worlds
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Sub-Neptune · G-type yellow (Sun-like)
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K2-80 b
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Kepler-903 b
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Kepler-1404 b
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Kepler-754 b
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HD 108236 f
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.02 R⊕ · 210.7 ly