Key parameters at a glance
- A radius of 1.88 Earth radii
- A mass of 4.19 Earth masses
- Surface gravity around 1.19 g
- An orbital period of 11.604 days
- Semi-major axis 0.0981 AU
- Equilibrium temperature 841 K (568 °C)
- Distance from Earth 3,192.02 light-years
- Earth Similarity Index 0.333
- Travel time at Voyager 1 speed 56,291,217 years
1 sibling around Kepler-1471
Kepler-1471 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-1471 b | Super-Earth | 1.41 | 2.57 | 3.639 | 1,238 | 2016 |
| Kepler-1471 c this | Super-Earth | 1.88 | 4.19 | 11.604 | 841 | 2023 |
Kepler-1471 c Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#153of 1176
top 12.9%
This planet
1.88R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1471 c | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.88 | 11.21 |
| Mass (M⊕) | 1.00 | 4.19 | 317.83 |
| Density (g/cm³) | 5.51 | 3.47 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.19 | 2.53 |
| Insolation (S⊕) | 1.00 | 118.50 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 416282121
Gaia DR2
Gaia DR2 2133035966431029376
Gaia DR3
Gaia DR3 2133035966431029376
System
Kepler-1471
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 11.60 Earth days (3.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0981 AU.
Transit Fingerprint
Depth
0.027 %
Duration
3.409 h
Impact parameter b
0.118
Rp / R★
0.014751
Transit midpoint (BJD)
2,454,972.0560
Photometric dip
Transit produces a flux drop of 268 ppm lasting ≈ 3.41 h.
Extended Orbital Architecture
Planet / star radius ratio
0.014751
Semi-major axis / stellar radius
26.220
Impact parameter (b)
0.118
Transit mid-time (BJD)
2,454,972.0560
Angular separation (arcsec)
0.10000
Eq. Temperature
841K
(568 °C)
Insolation (S⊕)
118.50
Earth = 1.00
Earth Similarity (ESI)
0.333
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
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-1471
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,533 K — cooler than the Sun (5,778 K)
Estimated Age
4.57 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.166 R☉
Stellar Mass
0.934 M☉
Metallicity [Fe/H]
0.16
Extended Stellar Properties
Surface gravity (log g)
4.275 dex
Stellar density
2.531 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.993 mas
Total Proper Motion
4.136 mas/yr
PM Right Ascension
-0.01 mas/yr
PM Declination
4.14 mas/yr
Galactic Cartesian (pc)
x = 0.216 · y = -0.605 · z = 0.766
Equatorial (J2000)
RA 289.66492° · Dec 50.02006°
Galactic ℓ, b
81.257° · 16.358°
Ecliptic λ, β
310.816° · 70.685°
HTM-20 index
953328541
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