Confirmed Exoplanet Discovered 2016

Kepler-757 b

A super-earth orbiting the f-type yellow-white Kepler-757, located approximately 3,485.6 light-years from Earth.

Key parameters at a glance

  • A radius of 1.36 Earth radii
  • A mass of 2.42 Earth masses
  • Surface gravity around 1.31 g
  • An orbital period of 1.023 days
  • Semi-major axis 0.0190 AU
  • Equilibrium temperature 1,734 K (1461 °C)
  • Distance from Earth 3,485.56 light-years
  • Earth Similarity Index 0.164
  • Travel time at Voyager 1 speed 61,467,917 years

Kepler-757 b Planet Profile

Physical Specs

Radius
1.36 R⊕
Radius (Jupiter)
0.121 R♃
Mass
2.42 M⊕
Mass (Jupiter)
0.008 M♃
Density
5.29 g/cm³
Surface Gravity
1.31 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.164
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

#981of 1176

top 83.3%

This planet

1.36R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-757 b Jupiter
Radius (R⊕)1.001.3611.21
Mass (M⊕)1.002.42317.83
Density (g/cm³)5.515.291.33
Surface Gravity (g)1.001.312.53
Insolation (S⊕)1.003,345.450.037

Star Catalogue Identifiers

TIC

TIC 360022783

Gaia DR2

Gaia DR2 2076848310922066048

Gaia DR3

Gaia DR3 2076848310922066048

System

Kepler-757

Percentile among Super-Earth cohort

Radius 1.360 R⊕ · percentile 16 / cohort 1176
Mass 2.420 M⊕ · percentile 16 / cohort 1176
Orbital period 1.02 d · percentile 6 / cohort 1164
Distance 1,068.68 pc · percentile 85 / cohort 1171
ESI 0.164 · percentile 6 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
1.023 days
Semi-major axis
0.0190 AU
Eccentricity
0.000
Inclination
89.81 °

Year Length

A year here lasts approximately 1.02 Earth days (0.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0190 AU.

Transit Fingerprint

Depth

0.013 %

Duration

1.340 h

Impact parameter b

0.600

Rp / R★

0.010783

Transit midpoint (BJD)

2,454,966.4554

Photometric dip

Transit produces a flux drop of 129 ppm lasting ≈ 1.34 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010783

Semi-major axis / stellar radius

5.785

Impact parameter (b)

0.600

Transit mid-time (BJD)

2,454,966.4554

Angular separation (arcsec)

0.01780

Eq. Temperature

1,734K

(1461 °C)

Insolation (S⊕)

3,345.45

Earth = 1.00

Earth Similarity (ESI)

0.164

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Discovery Paper

Primary reference

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Host System: Kepler-757

Spectral Class

F-type yellow-white

Effective Temperature

6,014 K — hotter than the Sun (5,778 K)

Estimated Age

3.31 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.130 R☉

Stellar Mass

1.080 M☉

Metallicity [Fe/H]

0.02

Extended Stellar Properties

Surface gravity (log g)

4.370 dex

Stellar density

3.501 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,068.68 parsec
Light-years 3,485.56 ly
V-band magnitude
15.07 mag
Voyager-speed travel 61,467,917 yr

Multi-band Host Photometry — 16 bands

9.315.915.93B15.07V14.76Gaia14.80Kepler14.24TESS15.37Sloan g14.75Sloan r14.56Sloan i14.47Sloan z13.50J13.16H13.04K13.03W113.12W212.24W39.27W4

Astrometric Data

Parallax

0.908 mas

Total Proper Motion

4.369 mas/yr

PM Right Ascension

2.39 mas/yr

PM Declination

3.65 mas/yr

Galactic Cartesian (pc)

x = 0.337 · y = -0.670 · z = 0.661

Equatorial (J2000)

RA 296.68049° · Dec 41.38653°

Galactic ℓ, b

75.540° · 8.161°

Ecliptic λ, β

313.732° · 60.838°

HTM-20 index

-835634747

Similar Worlds

Explore Related Categories