Confirmed Exoplanet Discovered 2016

Kepler-1450 b

A super-earth orbiting the k-type orange Kepler-1450, located approximately 1,649.8 light-years from Earth.

Key parameters at a glance

  • A radius of 1.71 Earth radii
  • A mass of 3.57 Earth masses
  • Surface gravity around 1.22 g
  • An orbital period of 54.509 days
  • Semi-major axis 0.2401 AU
  • Equilibrium temperature 308 K (35 °C)
  • Distance from Earth 1,649.79 light-years
  • Earth Similarity Index 0.839
  • Travel time at Voyager 1 speed 29,094,074 years

Kepler-1450 b Planet Profile

Physical Specs

Radius
1.71 R⊕
Radius (Jupiter)
0.153 R♃
Mass
3.57 M⊕
Mass (Jupiter)
0.011 M♃
Density
3.92 g/cm³
Surface Gravity
1.22 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.839
HZ Position Inner
Controversial No

Discovery

Year 2016
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#385of 1176

top 32.7%

This planet

1.71R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-1450 b Jupiter
Radius (R⊕)1.001.7111.21
Mass (M⊕)1.003.57317.83
Density (g/cm³)5.513.921.33
Surface Gravity (g)1.001.222.53
Insolation (S⊕)1.003.080.037

Star Catalogue Identifiers

TIC

TIC 271162715

Gaia DR2

Gaia DR2 2079905193758608384

Gaia DR3

Gaia DR3 2079905193758608384

System

Kepler-1450

Percentile among Super-Earth cohort

Radius 1.710 R⊕ · percentile 66 / cohort 1176
Mass 3.570 M⊕ · percentile 61 / cohort 1176
Orbital period 54.51 d · percentile 96 / cohort 1164
Distance 505.83 pc · percentile 48 / cohort 1171
ESI 0.839 · percentile 92 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
54.509 days
Semi-major axis
0.2401 AU
Eccentricity
0.000
Inclination
88.43 °

Year Length

A year here lasts approximately 54.51 Earth days (14.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2401 AU.

Transit Fingerprint

Depth

0.062 %

Duration

4.222 h

Impact parameter b

0.037

Rp / R★

0.023256

Transit midpoint (BJD)

2,454,973.8263

Photometric dip

Transit produces a flux drop of 622 ppm lasting ≈ 4.22 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023256

Semi-major axis / stellar radius

100.870

Impact parameter (b)

0.037

Transit mid-time (BJD)

2,454,973.8263

Angular separation (arcsec)

0.47500

Eq. Temperature

308K

(35 °C)

Insolation (S⊕)

3.08

Earth = 1.00

Earth Similarity (ESI)

0.839

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — liquid water is physically possible with adequate atmospheric pressure.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Host System: Kepler-1450

Spectral Class

K-type orange

Effective Temperature

4,524 K — cooler than the Sun (5,778 K)

Estimated Age

4.37 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.680 R☉

Stellar Mass

0.710 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.630 dex

Stellar density

6.535 g/cm³

Metallicity ratio

[Fe/H]

Distance
505.83 parsec
Light-years 1,649.79 ly
V-band magnitude
15.92 mag
Voyager-speed travel 29,094,074 yr

Multi-band Host Photometry — 16 bands

9.517.017.02B15.92V15.49Gaia15.50Kepler14.74TESS16.56Sloan g15.43Sloan r15.04Sloan i14.83Sloan z13.68J13.06H12.91K12.86W112.92W213.23W39.51W4

Astrometric Data

Parallax

1.949 mas

Total Proper Motion

27.836 mas/yr

PM Right Ascension

-20.14 mas/yr

PM Declination

-19.22 mas/yr

Galactic Cartesian (pc)

x = 0.293 · y = -0.642 · z = 0.708

Equatorial (J2000)

RA 294.55368° · Dec 45.08130°

Galactic ℓ, b

78.098° · 11.275°

Ecliptic λ, β

313.646° · 64.844°

HTM-20 index

-1686637407

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