Key parameters at a glance
- A radius of 1.61 Earth radii
- A mass of 3.23 Earth masses
- Surface gravity around 1.24 g
- An orbital period of 14.534 days
- Semi-major axis 0.0956 AU
- Equilibrium temperature 420 K (147 °C)
- Distance from Earth 874.75 light-years
- Earth Similarity Index 0.673
- Travel time at Voyager 1 speed 15,426,222 years
- Almost certainly tidally locked to its host star given the close orbit
Kepler-1749 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#548of 1176
top 46.5%
This planet
1.61R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-1749 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.61 | 11.21 |
| Mass (M⊕) | 1.00 | 3.23 | 317.83 |
| Density (g/cm³) | 5.51 | 4.23 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.24 | 2.53 |
| Insolation (S⊕) | 1.00 | 7.34 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 159389232
Gaia DR2
Gaia DR2 2127463224886292224
Gaia DR3
Gaia DR3 2127463224886292224
System
Kepler-1749
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 14.53 Earth days (4.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0956 AU.
Transit Fingerprint
Depth
0.051 %
Duration
3.309 h
Impact parameter b
0.440
Rp / R★
0.021100
Transit midpoint (BJD)
2,454,978.4264
Photometric dip
Transit produces a flux drop of 511 ppm lasting ≈ 3.31 h.
Extended Orbital Architecture
Planet / star radius ratio
0.021100
Semi-major axis / stellar radius
31.600
Impact parameter (b)
0.440
Transit mid-time (BJD)
2,454,978.4264
Angular separation (arcsec)
0.35600
Eq. Temperature
420K
(147 °C)
Insolation (S⊕)
7.34
Earth = 1.00
Earth Similarity (ESI)
0.673
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.
Discovery Paper
Primary reference
Valizadegan et al. 2022Instrument
Kepler CCD Array
Publication
2022-02
Observation locale
Space
Discovery cohort
Planets confirmed in 2021 at Kepler (12 shown).
Host System: Kepler-1749
Spectral Class
K-type orange
Effective Temperature
3,957 K — cooler than the Sun (5,778 K)
Estimated Age
3.72 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.553 R☉
Stellar Mass
0.551 M☉
Metallicity [Fe/H]
-0.16
Extended Stellar Properties
Surface gravity (log g)
4.693 dex
Stellar density
1.052 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
3.700 mas
Total Proper Motion
18.005 mas/yr
PM Right Ascension
-0.15 mas/yr
PM Declination
-18.00 mas/yr
Galactic Cartesian (pc)
x = 0.243 · y = -0.657 · z = 0.714
Equatorial (J2000)
RA 290.29458° · Dec 45.56452°
Galactic ℓ, b
77.204° · 14.180°
Ecliptic λ, β
307.325° · 66.393°
HTM-20 index
1427607207
Similar Worlds
HD 219134 d
Super-Earth · K-type orange
Radius 1.61 R⊕ · 21.3 ly
Kepler-62 e
Super-Earth · K-type orange
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Kepler-1048 b
Super-Earth · K-type orange
Radius 1.61 R⊕ · 1,813.4 ly
Kepler-1400 b
Super-Earth · K-type orange
Radius 1.62 R⊕ · 2,453.5 ly
Kepler-992 b
Super-Earth · K-type orange
Radius 1.62 R⊕ · 846.8 ly
HD 219134 b
Super-Earth · K-type orange
Radius 1.60 R⊕ · 21.3 ly