Key parameters at a glance
- A radius of 1.58 Earth radii
- A mass of 3.11 Earth masses
- Surface gravity around 1.25 g
- An orbital period of 9.182 days
- Semi-major axis 0.0830 AU
- Equilibrium temperature 804 K (531 °C)
- Distance from Earth 3,029.92 light-years
- Earth Similarity Index 0.370
- Travel time at Voyager 1 speed 53,432,592 years
1 sibling around Kepler-1001
Kepler-1001 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-1001 c this | Super-Earth | 1.58 | 3.11 | 9.182 | 804 | 2020 |
| Kepler-1001 b | Sub-Neptune | 3.15 | 10.10 | 14.305 | 693 | 2016 |
Kepler-1001 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#616of 1176
top 52.3%
This planet
1.58R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1001 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.58 | 11.21 |
| Mass (M⊕) | 1.00 | 3.11 | 317.83 |
| Density (g/cm³) | 5.51 | 4.35 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.25 | 2.53 |
| Insolation (S⊕) | 1.00 | 72.40 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 405719252
Gaia DR2
Gaia DR2 2131178238457347712
Gaia DR3
Gaia DR3 2131178238457347712
System
Kepler-1001
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 9.18 Earth days (2.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0830 AU.
Transit Fingerprint
Depth
0.036 %
Duration
3.396 h
Impact parameter b
0.880
Rp / R★
0.016676
Transit midpoint (BJD)
2,454,965.4115
Photometric dip
Transit produces a flux drop of 364 ppm lasting ≈ 3.40 h.
Extended Orbital Architecture
Planet / star radius ratio
0.016676
Semi-major axis / stellar radius
5.320
Impact parameter (b)
0.880
Transit mid-time (BJD)
2,454,965.4115
Angular separation (arcsec)
0.08930
Eq. Temperature
804K
(531 °C)
Insolation (S⊕)
72.40
Earth = 1.00
Earth Similarity (ESI)
0.370
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Transit timing variations
Gravitational interactions from neighbours have been detected.
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-1001
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,376 K — cooler than the Sun (5,778 K)
Estimated Age
1.82 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.836 R☉
Stellar Mass
0.930 M☉
Metallicity [Fe/H]
0.04
Extended Stellar Properties
Surface gravity (log g)
4.562 dex
Stellar density
2.240 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.048 mas
Total Proper Motion
2.844 mas/yr
PM Right Ascension
-2.17 mas/yr
PM Declination
-1.83 mas/yr
Galactic Cartesian (pc)
x = 0.185 · y = -0.635 · z = 0.750
Equatorial (J2000)
RA 286.27392° · Dec 48.61870°
Galactic ℓ, b
79.032° · 17.884°
Ecliptic λ, β
303.135° · 70.192°
HTM-20 index
-227376279
Similar Worlds
K2-396 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.58 R⊕ · 896.5 ly
Kepler-1865 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.58 R⊕ · 3,008.0 ly
Kepler-784 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.58 R⊕ · 4,252.2 ly
Kepler-1523 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.58 R⊕ · 2,823.2 ly
Kepler-111 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.58 R⊕ · 2,143.6 ly
K2-65 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.58 R⊕ · 235.5 ly