Key parameters at a glance
- A radius of 3.17 Earth radii
- A mass of 10.20 Earth masses
- Surface gravity around 1.02 g
- An orbital period of 174.510 days
- Semi-major axis 0.5549 AU
- Equilibrium temperature 260 K (-13 °C)
- Distance from Earth 2,081.69 light-years
- Earth Similarity Index 0.650
- Travel time at Voyager 1 speed 36,710,555 years
Context from the literature
The list of exoplanets detected by the Kepler space telescope contains bodies with a wide variety of properties, with significant ranges in orbital distances, masses, radii, composition, habitability, and host star type. As of June 16 2023, the Kepler space telescope and its follow-up observations have detected 2,778 planets, including hot Jupiters, super-Earths, circumbinary planets, and planets located in the circumstellar habitable zones of their host stars. Kepler has detected over 3,601 unconfirmed planet candidates and 2,165 eclipsing binary stars.
Excerpted from Wikipedia · full article
Kepler-1593 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#378of 1978
top 19.1%
This planet
3.17R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1593 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.17 | 11.21 |
| Mass (M⊕) | 1.00 | 10.20 | 317.83 |
| Density (g/cm³) | 5.51 | 1.76 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.02 | 2.53 |
| Insolation (S⊕) | 1.00 | 0.89 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 239306899
Gaia DR2
Gaia DR2 2076087964270165632
Gaia DR3
Gaia DR3 2076087964270165632
System
Kepler-1593
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 174.51 Earth days (47.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.5549 AU.
Transit Fingerprint
Depth
0.153 %
Duration
7.098 h
Impact parameter b
0.460
Rp / R★
0.038453
Transit midpoint (BJD)
2,455,034.4727
Photometric dip
Transit produces a flux drop of 1,530 ppm lasting ≈ 7.10 h.
Extended Orbital Architecture
Planet / star radius ratio
0.038453
Semi-major axis / stellar radius
169.100
Impact parameter (b)
0.460
Transit mid-time (BJD)
2,455,034.4727
Angular separation (arcsec)
0.86900
Eq. Temperature
260K
(-13 °C)
Insolation (S⊕)
0.89
Earth = 1.00
Earth Similarity (ESI)
0.650
0 = alien, 1 = Earth-identical
Within the conservative habitable zone — surface water would be frozen.
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
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-1593
Spectral Class
K-type orange
Effective Temperature
4,995 K — cooler than the Sun (5,778 K)
Estimated Age
3.63 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.770 R☉
Stellar Mass
0.810 M☉
Metallicity [Fe/H]
0.02
Extended Stellar Properties
Surface gravity (log g)
4.590 dex
Stellar density
2.220 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.539 mas
Total Proper Motion
3.084 mas/yr
PM Right Ascension
1.92 mas/yr
PM Declination
2.42 mas/yr
Galactic Cartesian (pc)
x = 0.362 · y = -0.615 · z = 0.700
Equatorial (J2000)
RA 300.48820° · Dec 44.46067°
Galactic ℓ, b
79.636° · 7.297°
Ecliptic λ, β
321.726° · 62.533°
HTM-20 index
-1671286597
Similar Worlds
HD 69830 b
Sub-Neptune · K-type orange
Radius 3.17 R⊕ · 41.0 ly
NGTS-4 b
Sub-Neptune · K-type orange
Radius 3.18 R⊕ · 915.0 ly
HD 216520 b
Sub-Neptune · K-type orange
Radius 3.18 R⊕ · 63.8 ly
Kepler-324 c
Sub-Neptune · K-type orange
Radius 3.15 R⊕ · 1,635.9 ly
Kepler-1868 b
Sub-Neptune · K-type orange
Radius 3.15 R⊕ · 894.3 ly
K2-36 c
Sub-Neptune · K-type orange
Radius 3.20 R⊕ · 358.0 ly