Key parameters at a glance
- A radius of 3.15 Earth radii
- A mass of 10.10 Earth masses
- Surface gravity around 1.02 g
- An orbital period of 14.305 days
- Semi-major axis 0.1115 AU
- Equilibrium temperature 693 K (420 °C)
- Distance from Earth 3,029.92 light-years
- Earth Similarity Index 0.334
- Travel time at Voyager 1 speed 53,432,592 years
1 sibling around Kepler-1001
Kepler-1001 b 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 | Super-Earth | 1.58 | 3.11 | 9.182 | 804 | 2020 |
| Kepler-1001 b this | Sub-Neptune | 3.15 | 10.10 | 14.305 | 693 | 2016 |
Kepler-1001 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#391of 1978
top 19.7%
This planet
3.15R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1001 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 3.15 | 11.21 |
| Mass (M⊕) | 1.00 | 10.10 | 317.83 |
| Density (g/cm³) | 5.51 | 1.78 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.02 | 2.53 |
| Insolation (S⊕) | 1.00 | 40.85 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 405719252
Gaia DR2
Gaia DR2 2131178238457347712
Gaia DR3
Gaia DR3 2131178238457347712
System
Kepler-1001
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 14.31 Earth days (3.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1115 AU.
Transit Fingerprint
Depth
0.086 %
Duration
4.449 h
Impact parameter b
0.868
Rp / R★
0.033460
Transit midpoint (BJD)
2,454,968.0663
Photometric dip
Transit produces a flux drop of 863 ppm lasting ≈ 4.45 h.
Extended Orbital Architecture
Planet / star radius ratio
0.033460
Semi-major axis / stellar radius
14.100
Impact parameter (b)
0.868
Transit mid-time (BJD)
2,454,968.0663
Angular separation (arcsec)
0.12000
Eq. Temperature
693K
(420 °C)
Insolation (S⊕)
40.85
Earth = 1.00
Earth Similarity (ESI)
0.334
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
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-1001
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,491 K — cooler than the Sun (5,778 K)
Estimated Age
4.68 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.880 R☉
Stellar Mass
0.900 M☉
Metallicity [Fe/H]
-0.03
Extended Stellar Properties
Surface gravity (log g)
4.520 dex
Stellar density
1.590 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
Kepler-896 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.15 R⊕ · 7,615.5 ly
TOI-2141 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.15 R⊕ · 253.4 ly
Kepler-1790 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.14 R⊕ · 3,490.4 ly
TOI-1716.01
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.14 R⊕ · 339.7 ly
HD 134060 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.16 R⊕ · 78.3 ly
Kepler-222 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 3.16 R⊕ · 2,475.0 ly