Key parameters at a glance
- A radius of 1.53 Earth radii
- A mass of 2.96 Earth masses
- Surface gravity around 1.26 g
- An orbital period of 0.538 days
- Semi-major axis 0.0123 AU
- Equilibrium temperature 2,386 K (2113 °C)
- Distance from Earth 2,616.30 light-years
- Earth Similarity Index 0.107
- Travel time at Voyager 1 speed 46,138,496 years
1 sibling around Kepler-990
Kepler-990 c shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-990 c this | Super-Earth | 1.53 | 2.96 | 0.538 | 2,386 | 2016 |
| Kepler-990 b | Sub-Neptune | 2.60 | 7.27 | 9.917 | 903 | 2016 |
Kepler-990 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#687of 1176
top 58.3%
This planet
1.53R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-990 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.53 | 11.21 |
| Mass (M⊕) | 1.00 | 2.96 | 317.83 |
| Density (g/cm³) | 5.51 | 4.54 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.26 | 2.53 |
| Insolation (S⊕) | 1.00 | 5,272.40 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 273591945
Gaia DR2
Gaia DR2 2086302805244921984
Gaia DR3
Gaia DR3 2086302805244921984
System
Kepler-990
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts roughly 12.9 hours long on a nearly circular orbit at a mean orbital distance of 0.0123 AU.
Transit Fingerprint
Depth
0.019 %
Duration
1.480 h
Impact parameter b
0.109
Rp / R★
0.012927
Transit midpoint (BJD)
2,454,964.6493
Photometric dip
Transit produces a flux drop of 190 ppm lasting ≈ 1.48 h.
Extended Orbital Architecture
Planet / star radius ratio
0.012927
Semi-major axis / stellar radius
2.862
Impact parameter (b)
0.109
Transit mid-time (BJD)
2,454,964.6493
Angular separation (arcsec)
0.01540
Eq. Temperature
2,386K
(2113 °C)
Insolation (S⊕)
5,272.40
Earth = 1.00
Earth Similarity (ESI)
0.107
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
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-990
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,948 K — hotter than the Sun (5,778 K)
Estimated Age
3.55 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.080 R☉
Stellar Mass
1.050 M☉
Metallicity [Fe/H]
0.01
Extended Stellar Properties
Surface gravity (log g)
4.390 dex
Stellar density
1.000 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.218 mas
Total Proper Motion
19.322 mas/yr
PM Right Ascension
-8.09 mas/yr
PM Declination
-17.55 mas/yr
Galactic Cartesian (pc)
x = 0.320 · y = -0.604 · z = 0.730
Equatorial (J2000)
RA 297.93818° · Dec 46.88132°
Galactic ℓ, b
80.844° · 10.055°
Ecliptic λ, β
320.530° · 65.492°
HTM-20 index
1105149662
Similar Worlds
Kepler-198 d
Super-Earth · G-type yellow (Sun-like)
Radius 1.53 R⊕ · 1,615.6 ly
Kepler-825 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.53 R⊕ · 2,634.9 ly
TOI-5788 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.53 R⊕ · 318.4 ly
Kepler-1950 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.53 R⊕ · 2,274.1 ly
Kepler-107 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.54 R⊕ · 1,715.6 ly
HIP 29442 d
Super-Earth · G-type yellow (Sun-like)
Radius 1.54 R⊕ · 222.4 ly