Key parameters at a glance
- A radius of 2.19 Earth radii
- A mass of 5.43 Earth masses
- Surface gravity around 1.13 g
- An orbital period of 509.997 days
- Semi-major axis 1.1218 AU
- Equilibrium temperature 182 K (-91 °C)
- Distance from Earth 1,080.27 light-years
- Earth Similarity Index 0.565
- Travel time at Voyager 1 speed 19,050,579 years
Kepler-1630 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1691of 1978
top 85.4%
This planet
2.19R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-1630 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.19 | 11.21 |
| Mass (M⊕) | 1.00 | 5.43 | 317.83 |
| Density (g/cm³) | 5.51 | 2.84 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.13 | 2.53 |
| Insolation (S⊕) | 1.00 | 0.26 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 273237673
Gaia DR2
Gaia DR2 2078840900864235136
Gaia DR3
Gaia DR3 2078840900864235136
System
Kepler-1630
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts about 1.40 Earth years on a nearly circular orbit at a mean orbital distance of 1.1218 AU.
Transit Fingerprint
Depth
0.127 %
Duration
8.481 h
Impact parameter b
0.025
Rp / R★
0.031704
Transit midpoint (BJD)
2,455,109.7312
Photometric dip
Transit produces a flux drop of 1,267 ppm lasting ≈ 8.48 h.
Extended Orbital Architecture
Planet / star radius ratio
0.031704
Semi-major axis / stellar radius
473.800
Impact parameter (b)
0.025
Transit mid-time (BJD)
2,455,109.7312
Angular separation (arcsec)
3.39000
Eq. Temperature
182K
(-91 °C)
Insolation (S⊕)
0.26
Earth = 1.00
Earth Similarity (ESI)
0.565
0 = alien, 1 = Earth-identical
Beyond the outer HZ boundary (too cold) — surface water would be frozen.
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-1630
Spectral Class
K-type orange
Effective Temperature
4,736 K — cooler than the Sun (5,778 K)
Estimated Age
5.01 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.630 R☉
Stellar Mass
0.660 M☉
Metallicity [Fe/H]
-0.46
Extended Stellar Properties
Surface gravity (log g)
4.660 dex
Stellar density
7.736 g/cm³
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
2.990 mas
Total Proper Motion
26.532 mas/yr
PM Right Ascension
-5.95 mas/yr
PM Declination
25.86 mas/yr
Galactic Cartesian (pc)
x = 0.334 · y = -0.641 · z = 0.691
Equatorial (J2000)
RA 297.50830° · Dec 43.71105°
Galactic ℓ, b
77.892° · 8.766°
Ecliptic λ, β
316.812° · 62.750°
HTM-20 index
2036126112
Similar Worlds
TOI-880.02
Sub-Neptune · K-type orange
Radius 2.19 R⊕ · 197.9 ly
Kepler-1042 b
Sub-Neptune · K-type orange
Radius 2.19 R⊕ · 2,149.4 ly
Kepler-174 d
Sub-Neptune · K-type orange
Radius 2.19 R⊕ · 1,254.9 ly
K2-254 c
Sub-Neptune · K-type orange
Radius 2.19 R⊕ · 742.9 ly
K2-247 c
Sub-Neptune · K-type orange
Radius 2.19 R⊕ · 841.9 ly
Kepler-57 c
Sub-Neptune · K-type orange
Radius 2.20 R⊕ · 2,100.9 ly