Key parameters at a glance
- A radius of 1.01 Earth radii
- A mass of 1.01 Earth masses
- Surface gravity around 0.99 g
- An orbital period of 9.221 days
- Semi-major axis 0.0820 AU
- Equilibrium temperature 817 K (544 °C)
- Distance from Earth 4,362.70 light-years
- Earth Similarity Index 0.402
- Travel time at Voyager 1 speed 76,936,127 years
3 siblings around Kepler-282
Kepler-282 b shares its host star with 3 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-282 b this | Rocky Terrestrial | 1.01 | 1.01 | 9.221 | 817 | 2014 |
| Kepler-282 c | Rocky Terrestrial | 1.20 | 1.87 | 13.639 | 717 | 2014 |
| Kepler-282 d | Sub-Neptune | 2.46 | 61.00 | 24.806 | 588 | 2013 |
| Kepler-282 e | Sub-Neptune | 3.10 | 56.20 | 44.347 | 484 | 2013 |
Kepler-282 b Planet Profile
Physical Specs
Classification
Planet Type
Rocky Terrestrial
Discovery
Size rank in cohort
Rank by radius
#326of 570
top 57.0%
This planet
1.01R⊕
Rocky Terrestrial median
1.01R⊕
Nearest-size peers
| Metric | Earth | Kepler-282 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.01 | 11.21 |
| Mass (M⊕) | 1.00 | 1.01 | 317.83 |
| Density (g/cm³) | 5.51 | 5.39 | 1.33 |
| Surface Gravity (g) | 1.00 | 0.99 | 2.53 |
| Insolation (S⊕) | 1.00 | 195.94 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 164779321
Gaia DR2
Gaia DR2 2106739943262307200
Gaia DR3
Gaia DR3 2106739943262307200
System
Kepler-282
Percentile among Rocky Terrestrial cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 9.22 Earth days (2.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0820 AU.
Transit Fingerprint
Depth
0.014 %
Duration
4.847 h
Impact parameter b
0.020
Rp / R★
0.010738
Transit midpoint (BJD)
2,454,971.0544
Photometric dip
Transit produces a flux drop of 140 ppm lasting ≈ 4.85 h.
Extended Orbital Architecture
Planet / star radius ratio
0.010738
Semi-major axis / stellar radius
14.511
Impact parameter (b)
0.020
Transit mid-time (BJD)
2,454,971.0544
Angular separation (arcsec)
0.06130
Eq. Temperature
817K
(544 °C)
Insolation (S⊕)
195.94
Earth = 1.00
Earth Similarity (ESI)
0.402
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Discovery Paper
Primary reference
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-282
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,602 K — cooler than the Sun (5,778 K)
Estimated Age
12.88 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.904 R☉
Stellar Mass
0.860 M☉
Metallicity [Fe/H]
-0.20
Extended Stellar Properties
Surface gravity (log g)
4.459 dex
Stellar density
0.640 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.719 mas
Total Proper Motion
8.884 mas/yr
PM Right Ascension
-6.56 mas/yr
PM Declination
-5.99 mas/yr
Galactic Cartesian (pc)
x = 0.180 · y = -0.686 · z = 0.705
Equatorial (J2000)
RA 284.67724° · Dec 44.79764°
Galactic ℓ, b
74.876° · 17.533°
Ecliptic λ, β
297.217° · 66.855°
HTM-20 index
965524275
Similar Worlds
Kepler-1081 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.01 R⊕ · 1,370.6 ly
Kepler-322 b
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Radius 1.01 R⊕ · 1,306.2 ly
Kepler-1482 b
Rocky Terrestrial · G-type yellow (Sun-like)
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Kepler-1911 b
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Kepler-392 b
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Kepler-1417 b
Rocky Terrestrial · G-type yellow (Sun-like)
Radius 1.00 R⊕ · 3,235.0 ly