Key parameters at a glance
- A radius of 1.80 Earth radii
- A mass of 3.89 Earth masses
- Surface gravity around 1.20 g
- An orbital period of 1.729 days
- Semi-major axis 0.0280 AU
- Equilibrium temperature 1,284 K (1011 °C)
- Distance from Earth 2,580.43 light-years
- Earth Similarity Index 0.213
- Travel time at Voyager 1 speed 45,505,803 years
2 siblings around Kepler-148
Kepler-148 b shares its host star with 2 other confirmed planets. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-148 b this | Super-Earth | 1.80 | 3.89 | 1.729 | 1,284 | 2014 |
| Kepler-148 c | Sub-Neptune | 3.60 | 12.60 | 4.180 | 957 | 2014 |
| Kepler-148 d | Neptune-like | 8.68 | 56.30 | 51.847 | 413 | 2016 |
Kepler-148 b Planet Profile
Physical Specs
Classification
Planet Type
Super-Earth
Discovery
Size rank in cohort
Rank by radius
#253of 1176
top 21.4%
This planet
1.80R⊕
Super-Earth median
1.60R⊕
Nearest-size peers
| Metric | Earth | Kepler-148 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 1.80 | 11.21 |
| Mass (M⊕) | 1.00 | 3.89 | 317.83 |
| Density (g/cm³) | 5.51 | 3.67 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.20 | 2.53 |
| Insolation (S⊕) | 1.00 | 609.02 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 159171904
Gaia DR2
Gaia DR2 2127828988601389440
Gaia DR3
Gaia DR3 2127828988601389440
System
Kepler-148
Percentile among Super-Earth cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 1.73 Earth days (0.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0280 AU.
Transit Fingerprint
Depth
0.052 %
Duration
1.757 h
Impact parameter b
0.050
Rp / R★
0.019490
Transit midpoint (BJD)
2,454,966.8185
Photometric dip
Transit produces a flux drop of 517 ppm lasting ≈ 1.76 h.
Extended Orbital Architecture
Planet / star radius ratio
0.019490
Semi-major axis / stellar radius
7.660
Impact parameter (b)
0.050
Transit mid-time (BJD)
2,454,966.8185
Angular separation (arcsec)
0.03540
Eq. Temperature
1,284K
(1011 °C)
Insolation (S⊕)
609.02
Earth = 1.00
Earth Similarity (ESI)
0.213
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.
Discovery Paper
Primary reference
Rowe et al. 2014Instrument
Kepler CCD Array
Publication
2014-03
Observation locale
Space
Discovery cohort
Planets confirmed in 2014 at Kepler (12 shown).
Host System: Kepler-148
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,272 K — cooler than the Sun (5,778 K)
Estimated Age
11.20 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.851 R☉
Stellar Mass
0.860 M☉
Metallicity [Fe/H]
0.14
Extended Stellar Properties
Surface gravity (log g)
4.546 dex
Stellar density
2.532 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.235 mas
Total Proper Motion
2.893 mas/yr
PM Right Ascension
-2.87 mas/yr
PM Declination
0.33 mas/yr
Galactic Cartesian (pc)
x = 0.231 · y = -0.643 · z = 0.730
Equatorial (J2000)
RA 289.78616° · Dec 46.85882°
Galactic ℓ, b
78.276° · 15.030°
Ecliptic λ, β
307.641° · 67.729°
HTM-20 index
1774126763
Similar Worlds
TOI-1347 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.80 R⊕ · 481.0 ly
Kepler-1327 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.80 R⊕ · 2,211.6 ly
Kepler-11 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.80 R⊕ · 2,108.1 ly
K2-170 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.80 R⊕ · 1,281.4 ly
Kepler-1954 b
Super-Earth · G-type yellow (Sun-like)
Radius 1.80 R⊕ · 4,480.8 ly
Kepler-272 c
Super-Earth · G-type yellow (Sun-like)
Radius 1.79 R⊕ · 2,901.5 ly