Key parameters at a glance
- A radius of 2.91 Earth radii
- A mass of 8.80 Earth masses
- Surface gravity around 1.04 g
- An orbital period of 8.689 days
- Semi-major axis 0.0774 AU
- Equilibrium temperature 782 K (509 °C)
- Distance from Earth 1,585.46 light-years
- Earth Similarity Index 0.305
- Travel time at Voyager 1 speed 27,959,597 years
1 sibling around Kepler-949
Kepler-949 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-949 b this | Sub-Neptune | 2.91 | 8.80 | 8.689 | 782 | 2016 |
| Kepler-949 c | Sub-Neptune | 2.97 | 9.11 | 20.998 | 582 | 2023 |
Kepler-949 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#608of 1978
top 30.7%
This planet
2.91R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-949 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.91 | 11.21 |
| Mass (M⊕) | 1.00 | 8.80 | 317.83 |
| Density (g/cm³) | 5.51 | 1.96 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.04 | 2.53 |
| Insolation (S⊕) | 1.00 | 58.44 | 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 8.69 Earth days (2.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0774 AU.
Transit Fingerprint
Depth
0.112 %
Duration
2.591 h
Impact parameter b
0.204
Rp / R★
0.030959
Transit midpoint (BJD)
2,454,966.6611
Photometric dip
Transit produces a flux drop of 1,117 ppm lasting ≈ 2.59 h.
Extended Orbital Architecture
Planet / star radius ratio
0.030959
Semi-major axis / stellar radius
26.669
Impact parameter (b)
0.204
Transit mid-time (BJD)
2,454,966.6611
Angular separation (arcsec)
0.15900
Eq. Temperature
782K
(509 °C)
Insolation (S⊕)
58.44
Earth = 1.00
Earth Similarity (ESI)
0.305
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-949
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,403 K — cooler than the Sun (5,778 K)
Estimated Age
4.57 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.860 R☉
Stellar Mass
0.890 M☉
Metallicity [Fe/H]
0.01
Extended Stellar Properties
Surface gravity (log g)
4.530 dex
Stellar density
1.930 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
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