Key parameters at a glance
- A radius of 13.66 Earth radii
- A mass of 1,026.59 Earth masses
- Surface gravity around 5.50 g
- An orbital period of 3.024 days
- Semi-major axis 0.0460 AU
- Equilibrium temperature 1,620 K (1347 °C)
- Distance from Earth 3,280.61 light-years
- Earth Similarity Index 0.106
- Travel time at Voyager 1 speed 57,853,510 years
Kepler-43 b Planet Profile
Physical Specs
Classification
Planet Type
Gas Giant
Discovery
Size rank in cohort
Rank by radius
#603of 1771
top 34.0%
This planet
13.66R⊕
Gas Giant median
13.52R⊕
Nearest-size peers
| Metric | Earth | Kepler-43 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 13.66 | 11.21 |
| Mass (M⊕) | 1.00 | 1,026.59 | 317.83 |
| Density (g/cm³) | 5.51 | 5.00 | 1.33 |
| Surface Gravity (g) | 1.00 | 5.50 | 2.53 |
| Insolation (S⊕) | 1.00 | 1,138.12 | 0.037 |
Alternative Mass Estimates
| Method | Value | Interpretation |
|---|---|---|
| Best measured mass | 1,026.591 M⊕ | Direct mass measurement (not derived). |
Star Catalogue Identifiers
TIC
TIC 164892194
Gaia DR2
Gaia DR2 2107314266289095296
Gaia DR3
Gaia DR3 2107314266289095296
System
Kepler-43
Percentile among Gas Giant cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 3.02 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0460 AU.
Transit Fingerprint
Depth
0.800 %
Duration
2.900 h
Impact parameter b
0.651
Rp / R★
0.086280
Transit midpoint (BJD)
2,454,965.4162
Photometric dip
Transit produces a flux drop of 8,005 ppm lasting ≈ 2.90 h.
Extended Orbital Architecture
Planet / star radius ratio
0.086280
Semi-major axis / stellar radius
6.975
Impact parameter (b)
0.651
RV semi-amplitude (K)
375.000 m/s
Occultation depth
0.001 ppm
Transit mid-time (BJD)
2,454,965.4162
Long. of periastron (ω)
52.00°
Angular separation (arcsec)
0.04570
Eq. Temperature
1,620K
(1347 °C)
Insolation (S⊕)
1,138.12
Earth = 1.00
Earth Similarity (ESI)
0.106
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Radial velocity
Stellar wobble has been measured spectroscopically.
Orbital-brightness modulation
Host star brightness varies with the planet's orbit.
Discovery Paper
Primary reference
Bonomo et al. 2011Instrument
Kepler CCD Array
Publication
2012-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2011 at Kepler (12 shown).
Host System: Kepler-43
Spectral Class
F-type yellow-white
Effective Temperature
6,041 K — hotter than the Sun (5,778 K)
Estimated Age
0.69 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
1.420 R☉
Stellar Mass
1.320 M☉
Metallicity [Fe/H]
0.33
Extended Stellar Properties
Surface gravity (log g)
4.260 dex
Stellar density
0.490 g/cm³
Systemic radial velocity
-37.59 km/s
Rotational v·sin i
4.90 km/s
Rotation period
12.95 days
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
0.965 mas
Total Proper Motion
3.009 mas/yr
PM Right Ascension
-3.00 mas/yr
PM Declination
0.19 mas/yr
Galactic Cartesian (pc)
x = 0.180 · y = -0.662 · z = 0.727
Equatorial (J2000)
RA 285.24083° · Dec 46.66824°
Galactic ℓ, b
76.857° · 17.837°
Ecliptic λ, β
299.552° · 68.549°
HTM-20 index
-1423863574
Similar Worlds
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Gas Giant · F-type yellow-white
Radius 13.66 R⊕ · 1,136.6 ly
TOI-6016 b
Gas Giant · F-type yellow-white
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WASP-116 b
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Radius 13.67 R⊕ · 1,824.0 ly
HAT-P-43 b
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HD 148164 b
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HD 143105 b
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