Key parameters at a glance
- A radius of 2.17 Earth radii
- A mass of 5.35 Earth masses
- Surface gravity around 1.14 g
- An orbital period of 140.252 days
- Semi-major axis 0.4706 AU
- Equilibrium temperature 284 K (11 °C)
- Distance from Earth 2,462.48 light-years
- Earth Similarity Index 0.803
- Travel time at Voyager 1 speed 43,425,794 years
Kepler-1653 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1720of 1978
top 86.9%
This planet
2.17R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1653 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.17 | 11.21 |
| Mass (M⊕) | 1.00 | 5.35 | 317.83 |
| Density (g/cm³) | 5.51 | 2.88 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.14 | 2.53 |
| Insolation (S⊕) | 1.00 | 0.98 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 184561612
System
Kepler-1653
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 140.25 Earth days (38.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4706 AU.
Transit Fingerprint
Depth
0.067 %
Duration
6.600 h
Impact parameter b
0.520
Rp / R★
0.028600
Transit midpoint (BJD)
2,455,008.1340
Photometric dip
Transit produces a flux drop of 665 ppm lasting ≈ 6.60 h.
Extended Orbital Architecture
Planet / star radius ratio
0.028600
Semi-major axis / stellar radius
146.700
Impact parameter (b)
0.520
Transit mid-time (BJD)
2,455,008.1340
Angular separation (arcsec)
0.62300
Eq. Temperature
284K
(11 °C)
Insolation (S⊕)
0.98
Earth = 1.00
Earth Similarity (ESI)
0.803
0 = alien, 1 = Earth-identical
Within the conservative habitable zone — liquid water is physically possible with adequate atmospheric pressure.
Discovery Paper
Primary reference
Torres et al. 2017Instrument
Kepler CCD Array
Publication
2017-12
Observation locale
Space
Discovery cohort
Planets confirmed in 2017 at Kepler (8 shown).
Host System: Kepler-1653
Spectral Class
K-type orange
Effective Temperature
4,807 K — cooler than the Sun (5,778 K)
Estimated Age
7.70 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.693 R☉
Stellar Mass
0.719 M☉
Metallicity [Fe/H]
-0.18
Extended Stellar Properties
Surface gravity (log g)
4.618 dex
Stellar density
2.160 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 15 bands
Astrometric Data
Total Proper Motion
5.200 mas/yr
PM Right Ascension
-1.10 mas/yr
PM Declination
5.10 mas/yr
Galactic Cartesian (pc)
x = 0.335 · y = -0.673 · z = 0.660
Equatorial (J2000)
RA 296.45770° · Dec 41.26602°
Galactic ℓ, b
75.352° · 8.248°
Ecliptic λ, β
313.323° · 60.786°
HTM-20 index
-1576062952
Similar Worlds
Kepler-1009 b
Sub-Neptune · K-type orange
Radius 2.17 R⊕ · 1,157.9 ly
Kepler-1329 b
Sub-Neptune · K-type orange
Radius 2.17 R⊕ · 1,917.9 ly
Kepler-304 c
Sub-Neptune · K-type orange
Radius 2.17 R⊕ · 1,417.7 ly
Kepler-102 e
Sub-Neptune · K-type orange
Radius 2.17 R⊕ · 351.6 ly
HD 20781 c
Sub-Neptune · K-type orange
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TOI-904 c
Sub-Neptune · K-type orange
Radius 2.17 R⊕ · 150.3 ly