Key parameters at a glance
- A radius of 1.72 Earth radii
- A mass of 3.61 Earth masses
- Surface gravity around 1.22 g
- An orbital period of 18.478 days
- Semi-major axis 0.0899 AU
- Equilibrium temperature 298 K (25 °C)
- Distance from Earth 356.51 light-years
- Earth Similarity Index 0.858
- Travel time at Voyager 1 speed 6,287,135 years
- Almost certainly tidally locked to its host star given the close orbit
Context from the literature
Kepler-560b, also called Kepler-560 Bb, is a confirmed exoplanet orbiting the secondary star of the binary star system Kepler-560. It is 287 light-years away. Though not listed in the Habitable Exoplanets Catalog, one study gives the planet an 85% chance of being in the habitable zone.
Excerpted from Wikipedia · full article
Kepler-560 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#373of 1176
top 31.6%
This planet
1.72R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-560 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.72 | 11.21 |
| Mass (M⊕) | 1.00 | 3.61 | 317.83 |
| Density (g/cm³) | 5.51 | 3.90 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.22 | 2.53 |
| Insolation (S⊕) | 1.00 | 2.46 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 239275865
Gaia DR2
Gaia DR2 2082162147537254400
Gaia DR3
Gaia DR3 2082162147537254400
System
Kepler-560
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 18.48 Earth days (5.1% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.0899 AU.
Transit Fingerprint
Depth
0.278 %
Duration
1.878 h
Impact parameter b
0.506
Rp / R★
0.047899
Transit midpoint (BJD)
2,455,018.2686
Photometric dip
Transit produces a flux drop of 2,779 ppm lasting ≈ 1.88 h.
Extended Orbital Architecture
Planet / star radius ratio
0.047899
Semi-major axis / stellar radius
78.710
Impact parameter (b)
0.506
Transit mid-time (BJD)
2,455,018.2686
Angular separation (arcsec)
0.82200
Eq. Temperature
298K
(25 °C)
Insolation (S⊕)
2.46
Earth = 1.00
Earth Similarity (ESI)
0.858
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure. Close-orbiting tidally-locked around a cool host.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Transit timing variations
Gravitational interactions from neighbours have been detected.
Discovery Paper
Primary reference
Mann et al. 2017Instrument
Kepler CCD Array
Publication
2017-06
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at Kepler (12 shown).
Host System: Kepler-560
Spectral Class
M-type red dwarf
Effective Temperature
3,556 K — cooler than the Sun (5,778 K)
Estimated Age
4.07 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.330 R☉
Stellar Mass
0.340 M☉
Metallicity [Fe/H]
-0.39
Extended Stellar Properties
Surface gravity (log g)
4.940 dex
Stellar density
8.386 g/cm³
Rotation period
50.47 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
9.120 mas
Total Proper Motion
86.880 mas/yr
PM Right Ascension
84.79 mas/yr
PM Declination
18.96 mas/yr
Galactic Cartesian (pc)
x = 0.356 · y = -0.611 · z = 0.707
Equatorial (J2000)
RA 300.20664° · Dec 45.01824°
Galactic ℓ, b
80.013° · 7.756°
Ecliptic λ, β
321.870° · 63.121°
HTM-20 index
-1182994858
Similar Worlds
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Radius 1.73 R⊕ · 48.9 ly
Kepler-231 b
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K2-133 e
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LHS 1903 e
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TOI-5799 b
Super-Earth · M-type red dwarf
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TOI-1266 d
Super-Earth · M-type red dwarf
Radius 1.74 R⊕ · 117.5 ly