Key parameters at a glance
- A radius of 1.97 Earth radii
- A mass of 4.53 Earth masses
- Surface gravity around 1.17 g
- An orbital period of 91.501 days
- Semi-major axis 0.3565 AU
- Equilibrium temperature 310 K (37 °C)
- Distance from Earth 1,427.99 light-years
- Earth Similarity Index 0.796
- Travel time at Voyager 1 speed 25,182,531 years
Kepler-1816 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#47of 1176
top 3.9%
This planet
1.97R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1816 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.97 | 11.21 |
| Mass (M⊕) | 1.00 | 4.53 | 317.83 |
| Density (g/cm³) | 5.51 | 3.27 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.17 | 2.53 |
| Insolation (S⊕) | 1.00 | 2.00 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 27911400
Gaia DR2
Gaia DR2 2135427576021495168
Gaia DR3
Gaia DR3 2135427576021495168
System
Kepler-1816
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 91.50 Earth days (25.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3565 AU.
Transit Fingerprint
Depth
0.070 %
Duration
4.842 h
Impact parameter b
0.225
Rp / R★
0.023662
Transit midpoint (BJD)
2,454,998.6730
Photometric dip
Transit produces a flux drop of 705 ppm lasting ≈ 4.84 h.
Extended Orbital Architecture
Planet / star radius ratio
0.023662
Semi-major axis / stellar radius
147.710
Impact parameter (b)
0.225
Transit mid-time (BJD)
2,454,998.6730
Angular separation (arcsec)
0.81400
Eq. Temperature
310K
(37 °C)
Insolation (S⊕)
2.00
Earth = 1.00
Earth Similarity (ESI)
0.796
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure.
Discovery Paper
Primary reference
Valizadegan et al. 2022Instrument
Kepler CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Kepler (12 shown).
Host System: Kepler-1816
Spectral Class
K-type orange
Effective Temperature
5,051 K — cooler than the Sun (5,778 K)
Estimated Age
0.70 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.706 R☉
Stellar Mass
0.786 M☉
Metallicity [Fe/H]
-0.24
Extended Stellar Properties
Surface gravity (log g)
4.628 dex
Stellar density
7.282 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.255 mas
Total Proper Motion
31.570 mas/yr
PM Right Ascension
-2.50 mas/yr
PM Declination
-31.47 mas/yr
Galactic Cartesian (pc)
x = 0.286 · y = -0.565 · z = 0.774
Equatorial (J2000)
RA 296.85098° · Dec 50.69877°
Galactic ℓ, b
83.915° · 12.507°
Ecliptic λ, β
323.629° · 69.189°
HTM-20 index
-55909266
Similar Worlds
K2-126 b
Super-Earth · K-type orange
Radius 1.97 R⊕ · 335.8 ly
Kepler-224 e
Super-Earth · K-type orange
Radius 1.97 R⊕ · 2,550.8 ly
K2-81 b
Super-Earth · K-type orange
Radius 1.97 R⊕ · 823.0 ly
Kepler-174 b
Super-Earth · K-type orange
Radius 1.96 R⊕ · 1,254.9 ly
Kepler-1460 b
Super-Earth · K-type orange
Radius 1.96 R⊕ · 1,804.4 ly
Kepler-298 b
Super-Earth · K-type orange
Radius 1.96 R⊕ · 1,690.2 ly