Key parameters at a glance
- A radius of 2.22 Earth radii
- A mass of 5.57 Earth masses
- Surface gravity around 1.13 g
- An orbital period of 169.134 days
- Semi-major axis 0.5738 AU
- Equilibrium temperature 273 K (0 °C)
- Distance from Earth 1,905.21 light-years
- Earth Similarity Index 0.774
- Travel time at Voyager 1 speed 33,598,450 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-1701 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1641of 1978
top 82.9%
This planet
2.22R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1701 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.22 | 11.21 |
| Mass (M⊕) | 1.00 | 5.57 | 317.83 |
| Density (g/cm³) | 5.51 | 2.79 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.13 | 2.53 |
| Insolation (S⊕) | 1.00 | 1.30 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 120899838
Gaia DR2
Gaia DR2 2103936497850300928
Gaia DR3
Gaia DR3 2103936497850300928
System
Kepler-1701
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 169.13 Earth days (46.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.5738 AU.
Transit Fingerprint
Depth
0.067 %
Duration
8.614 h
Impact parameter b
0.178
Rp / R★
0.023380
Transit midpoint (BJD)
2,455,034.8149
Photometric dip
Transit produces a flux drop of 672 ppm lasting ≈ 8.61 h.
Extended Orbital Architecture
Planet / star radius ratio
0.023380
Semi-major axis / stellar radius
151.200
Impact parameter (b)
0.178
Transit mid-time (BJD)
2,455,034.8149
Angular separation (arcsec)
0.98200
Eq. Temperature
273K
(0 °C)
Insolation (S⊕)
1.30
Earth = 1.00
Earth Similarity (ESI)
0.774
0 = alien, 1 = Earth-identical
Within the conservative habitable zone — liquid water is physically possible with adequate atmospheric pressure.
Discovery Paper
Primary reference
Armstrong et al. 2021Instrument
Kepler CCD Array
Publication
2021-07
Observation locale
Space
Discovery cohort
Planets confirmed in 2020 at Kepler (12 shown).
Host System: Kepler-1701
Spectral Class
K-type orange
Effective Temperature
5,146 K — cooler than the Sun (5,778 K)
Estimated Age
1.29 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.840 R☉
Stellar Mass
0.870 M☉
Metallicity [Fe/H]
0.03
Extended Stellar Properties
Surface gravity (log g)
4.529 dex
Stellar density
2.068 g/cm³
Metallicity ratio
[M/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.683 mas
Total Proper Motion
10.571 mas/yr
PM Right Ascension
0.32 mas/yr
PM Declination
-10.57 mas/yr
Galactic Cartesian (pc)
x = 0.213 · y = -0.713 · z = 0.668
Equatorial (J2000)
RA 286.60886° · Dec 41.88930°
Galactic ℓ, b
72.619° · 15.137°
Ecliptic λ, β
298.680° · 63.684°
HTM-20 index
1223559433
Similar Worlds
HD 22496 b
Sub-Neptune · K-type orange
Radius 2.22 R⊕ · 44.3 ly
TOI-1453 c
Sub-Neptune · K-type orange
Radius 2.22 R⊕ · 256.8 ly
Kepler-1753 b
Sub-Neptune · K-type orange
Radius 2.23 R⊕ · 2,308.2 ly
Kepler-1782 b
Sub-Neptune · K-type orange
Radius 2.23 R⊕ · 997.4 ly
K2-17 b
Sub-Neptune · K-type orange
Radius 2.23 R⊕ · 408.0 ly
K2-268 f
Sub-Neptune · K-type orange
Radius 2.23 R⊕ · 1,069.1 ly