Key parameters at a glance
- A radius of 2.97 Earth radii
- A mass of 9.11 Earth masses
- Surface gravity around 1.03 g
- An orbital period of 20.998 days
- Semi-major axis 0.1394 AU
- Equilibrium temperature 582 K (309 °C)
- Distance from Earth 1,585.46 light-years
- Earth Similarity Index 0.404
- Travel time at Voyager 1 speed 27,959,597 years
1 sibling around Kepler-949
Kepler-949 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-949 b | Sub-Neptune | 2.91 | 8.80 | 8.689 | 782 | 2016 |
| Kepler-949 c this | Sub-Neptune | 2.97 | 9.11 | 20.998 | 582 | 2023 |
Kepler-949 c Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#546of 1978
top 27.6%
This planet
2.97R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-949 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.97 | 11.21 |
| Mass (M⊕) | 1.00 | 9.11 | 317.83 |
| Density (g/cm³) | 5.51 | 1.91 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.03 | 2.53 |
| Insolation (S⊕) | 1.00 | 27.20 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 268060310
Gaia DR2
Gaia DR2 2085527924426959104
Gaia DR3
Gaia DR3 2085527924426959104
System
Kepler-949
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 21.00 Earth days (5.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1394 AU.
Transit Fingerprint
Depth
0.113 %
Duration
2.454 h
Impact parameter b
0.277
Rp / R★
0.030358
Transit midpoint (BJD)
2,454,965.0569
Photometric dip
Transit produces a flux drop of 1,132 ppm lasting ≈ 2.45 h.
Extended Orbital Architecture
Planet / star radius ratio
0.030358
Semi-major axis / stellar radius
64.900
Impact parameter (b)
0.277
Transit mid-time (BJD)
2,454,965.0569
Angular separation (arcsec)
0.28700
Eq. Temperature
582K
(309 °C)
Insolation (S⊕)
27.20
Earth = 1.00
Earth Similarity (ESI)
0.404
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
Valizadegan et al. 2023Instrument
Kepler CCD Array
Publication
2023-05
Observation locale
Space
Discovery cohort
Planets confirmed in 2023 at Kepler (12 shown).
Host System: Kepler-949
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,211 K — cooler than the Sun (5,778 K)
Estimated Age
1.74 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.895 R☉
Stellar Mass
0.817 M☉
Metallicity [Fe/H]
0.08
Extended Stellar Properties
Surface gravity (log g)
4.447 dex
Stellar density
11.720 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.029 mas
Total Proper Motion
10.777 mas/yr
PM Right Ascension
9.56 mas/yr
PM Declination
-4.98 mas/yr
Galactic Cartesian (pc)
x = 0.330 · y = -0.605 · z = 0.725
Equatorial (J2000)
RA 298.60791° · Dec 46.45366°
Galactic ℓ, b
80.696° · 9.444°
Ecliptic λ, β
321.051° · 64.904°
HTM-20 index
33017863
Similar Worlds
HD 134606 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.97 R⊕ · 87.4 ly
Kepler-985 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.98 R⊕ · 2,215.8 ly
Kepler-1129 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.96 R⊕ · 3,861.3 ly
Kepler-650 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.96 R⊕ · 2,884.5 ly
Kepler-1299 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.98 R⊕ · 4,582.3 ly
Kepler-1667 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.98 R⊕ · 2,044.4 ly