Key parameters at a glance
- A radius of 2.32 Earth radii
- A mass of 5.99 Earth masses
- Surface gravity around 1.11 g
- An orbital period of 8.181 days
- Semi-major axis 0.0720 AU
- Equilibrium temperature 716 K (443 °C)
- Distance from Earth 1,829.36 light-years
- Earth Similarity Index 0.364
- Travel time at Voyager 1 speed 32,260,763 years
1 sibling around Kepler-165
Kepler-165 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.
| Planet | Type | Radius (R⊕) | Mass (M⊕) | Period (d) | Eq. T (K) | Year |
|---|---|---|---|---|---|---|
| Kepler-165 b this | Sub-Neptune | 2.32 | 5.99 | 8.181 | 716 | 2014 |
| Kepler-165 c | Sub-Neptune | 2.23 | 5.60 | 15.313 | 581 | 2014 |
Kepler-165 b Planet Profile
Physical Specs
Classification
Planet Type
Sub-Neptune
Discovery
Size rank in cohort
Rank by radius
#1469of 1978
top 74.2%
This planet
2.32R⊕
Sub-Neptune median
2.71R⊕
Nearest-size peers
| Metric | Earth | Kepler-165 b | Jupiter |
|---|---|---|---|
| Radius (R⊕) | 1.00 | 2.32 | 11.21 |
| Mass (M⊕) | 1.00 | 5.99 | 317.83 |
| Density (g/cm³) | 5.51 | 2.64 | 1.33 |
| Surface Gravity (g) | 1.00 | 1.11 | 2.53 |
| Insolation (S⊕) | 1.00 | 59.80 | 0.037 |
Star Catalogue Identifiers
TIC
TIC 123129877
Gaia DR2
Gaia DR2 2119814820141727232
Gaia DR3
Gaia DR3 2119814820141727232
System
Kepler-165
Percentile among Sub-Neptune cohort
Orbit & Habitability
Orbital Dynamics
Year Length
A year here lasts approximately 8.18 Earth days (2.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0720 AU.
Transit Fingerprint
Depth
0.072 %
Duration
2.869 h
Impact parameter b
0.780
Rp / R★
0.029839
Transit midpoint (BJD)
2,455,009.7011
Photometric dip
Transit produces a flux drop of 724 ppm lasting ≈ 2.87 h.
Extended Orbital Architecture
Planet / star radius ratio
0.029839
Semi-major axis / stellar radius
11.460
Impact parameter (b)
0.780
Transit mid-time (BJD)
2,455,009.7011
Angular separation (arcsec)
0.12800
Eq. Temperature
716K
(443 °C)
Insolation (S⊕)
59.80
Earth = 1.00
Earth Similarity (ESI)
0.364
0 = alien, 1 = Earth-identical
Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.
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-165
Spectral Class
G-type yellow (Sun-like)
Effective Temperature
5,211 K — cooler than the Sun (5,778 K)
Estimated Age
10.50 Gyr — older than the Sun (4.6 Gyr)
Stellar Radius
0.770 R☉
Stellar Mass
0.746 M☉
Metallicity [Fe/H]
-0.25
Extended Stellar Properties
Surface gravity (log g)
4.542 dex
Stellar density
1.890 g/cm³
Systemic radial velocity
-23.59 km/s
Rotational v·sin i
0.20 km/s
Metallicity ratio
[Fe/H]
Multi-band Host Photometry — 16 bands
Astrometric Data
Parallax
1.754 mas
Total Proper Motion
21.918 mas/yr
PM Right Ascension
-15.53 mas/yr
PM Declination
-15.47 mas/yr
Galactic Cartesian (pc)
x = 0.125 · y = -0.660 · z = 0.741
Equatorial (J2000)
RA 280.69092° · Dec 47.80967°
Galactic ℓ, b
76.920° · 21.129°
Ecliptic λ, β
291.843° · 70.439°
HTM-20 index
1274663413
Similar Worlds
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Kepler-1010 b
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Kepler-321 c
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Kepler-1951 b
Sub-Neptune · G-type yellow (Sun-like)
Radius 2.32 R⊕ · 4,166.1 ly