Key parameters at a glance
- A radius of 1.48 Earth radii
- A mass of 2.80 Earth masses
- Surface gravity around 1.27 g
- An orbital period of 9.998 days
- Semi-major axis 0.0713 AU
- Distance from Earth 409.42 light-years
- Earth Similarity Index 0.896
- Travel time at Voyager 1 speed 7,220,128 years
- Almost certainly tidally locked to its host star given the close orbit
1 sibling around K2-83
K2-83 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 |
|---|---|---|---|---|---|---|
| K2-83 b | Rocky Terrestrial | 1.24 | 2.08 | 2.747 | — | 2016 |
| K2-83 c this | Super-Earth | 1.48 | 2.80 | 9.998 | — | 2016 |
K2-83 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#783of 1176
top 66.5%
This planet
1.48R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | K2-83 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.48 | 11.21 |
| Mass (M⊕) | 1.00 | 2.80 | 317.83 |
| Density (g/cm³) | 5.51 | 4.72 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.27 | 2.53 |
| Insolation (S⊕) | 1.00 | 7.42 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 242988068
Gaia DR2
Gaia DR2 40139531695379328
Gaia DR3
Gaia DR3 40139531695379328
System
K2-83
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 10.00 Earth days (2.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0713 AU.
Transit Fingerprint
Depth
0.146 %
Duration
2.770 h
Rp / R★
0.031900
Transit midpoint (BJD)
2,457,066.2703
Photometric dip
Transit produces a flux drop of 1,462 ppm lasting ≈ 2.77 h.
Extended Orbital Architecture
Planet / star radius ratio
0.031900
Semi-major axis / stellar radius
29.670
Transit mid-time (BJD)
2,457,066.2703
Long. of periastron (ω)
-19.35°
Angular separation (arcsec)
0.56800
Eq. Temperature
—
Insolation (S⊕)
7.42
Earth = 1.00
Earth Similarity (ESI)
0.896
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water). Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Crossfield et al. 2016Instrument
Kepler CCD Array
Publication
2016-09
Observation locale
Space
Discovery cohort
Planets confirmed in 2016 at K2 (12 shown).
Host System: K2-83
Spectral Class
K-type orange
Effective Temperature
3,910 K — cooler than the Sun (5,778 K)
Estimated Age
—
Stellar Radius
0.424 R☉
Stellar Mass
0.484 M☉
Metallicity [Fe/H]
—
Multi-band Host Photometry — 12 bands
Astrometric Data
Parallax
7.938 mas
Total Proper Motion
44.583 mas/yr
PM Right Ascension
-40.43 mas/yr
PM Declination
-18.79 mas/yr
Galactic Cartesian (pc)
x = 0.483 · y = 0.833 · z = 0.268
Equatorial (J2000)
RA 59.90138° · Dec 15.55880°
Galactic ℓ, b
175.582° · -27.514°
Ecliptic λ, β
60.991° · -4.901°
HTM-20 index
-559831002
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