Key parameters at a glance
- A radius of 2.50 Earth radii
- A mass of 6.80 Earth masses
- Surface gravity around 1.09 g
- An orbital period of 38.377 days
- Semi-major axis 0.2163 AU
- Equilibrium temperature 529 K (256 °C)
- Distance from Earth 3,372.22 light-years
- Earth Similarity Index 0.472
- Travel time at Voyager 1 speed 59,469,180 years
Kepler-672 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1168of 1978
top 59.0%
This planet
2.50R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-672 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.50 | 11.21 |
| Mass (M⊕) | 1.00 | 6.80 | 317.83 |
| Density (g/cm³) | 5.51 | 2.39 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.09 | 2.53 |
| Insolation (S⊕) | 1.00 | 16.36 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 26491504
Gaia DR2
Gaia DR2 2129776636010852224
Gaia DR3
Gaia DR3 2129776636010852224
System
Kepler-672
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 38.38 Earth days (10.5% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2163 AU.
Transit Fingerprint
Depth
0.072 %
Duration
5.550 h
Impact parameter b
0.162
Rp / R★
0.025457
Transit midpoint (BJD)
2,455,005.8195
Photometric dip
Transit produces a flux drop of 724 ppm lasting ≈ 5.55 h.
Extended Orbital Architecture
Planet / star radius ratio
0.025457
Semi-major axis / stellar radius
53.490
Impact parameter (b)
0.162
Transit mid-time (BJD)
2,455,005.8195
Angular separation (arcsec)
0.20900
Eq. Temperature
529K
(256 °C)
Insolation (S⊕)
16.36
Earth = 1.00
Earth Similarity (ESI)
0.472
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
Detection Signatures
Transit photometry
A transit dip has been observed from at least one telescope.
Transit timing variations
Gravitational interactions from neighbours have been detected.
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-672
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,627 K — cooler than the Sun (5,778 K)
Estimated Age
4.07 Gyr — younger than the Sun (4.6 Gyr)
Stellar Radius
0.920 R☉
Stellar Mass
0.950 M☉
Metallicity [Fe/H]
-0.01
Extended Stellar Properties
Surface gravity (log g)
4.500 dex
Stellar density
1.406 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 11 bands
Astrometric Data
Parallax
0.939 mas
Total Proper Motion
1.782 mas/yr
PM Right Ascension
-1.78 mas/yr
PM Declination
-0.11 mas/yr
Galactic Cartesian (pc)
x = 0.240 · y = -0.604 · z = 0.760
Equatorial (J2000)
RA 291.72200° · Dec 49.48085°
Galactic ℓ, b
81.299° · 14.925°
Ecliptic λ, β
313.724° · 69.643°
HTM-20 index
705034986
Similar Worlds
K2-231 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.50 R⊕ · 1,047.7 ly
Kepler-106 c
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.50 R⊕ · 1,449.2 ly
K2-282 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.50 R⊕ · 1,618.7 ly
Kepler-254 d
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.50 R⊕ · 4,531.9 ly
K2-6 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.50 R⊕ · 1,033.3 ly
Kepler-738 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.50 R⊕ · 3,632.2 ly