Confirmed Exoplanet Discovered 2014

Kepler-372 d

A super-earth orbiting the f-type yellow-white Kepler-372, located approximately 4,872.6 light-years from Earth.

Key parameters at a glance

  • A radius of 1.69 Earth radii
  • A mass of 3.50 Earth masses
  • Surface gravity around 1.23 g
  • An orbital period of 30.093 days
  • Semi-major axis 0.2010 AU
  • Equilibrium temperature 660 K (387 °C)
  • Distance from Earth 4,872.61 light-years
  • Earth Similarity Index 0.441
  • Travel time at Voyager 1 speed 85,928,430 years

2 siblings around Kepler-372

Kepler-372 d shares its host star with 2 other confirmed planets. Side-by-side measurements below.

Planet Type Radius (R⊕) Mass (M⊕) Period (d) Eq. T (K) Year
Kepler-372 b Super-Earth 1.36 2.42 6.850 1,081 2014
Kepler-372 c Sub-Neptune 2.09 5.02 20.054 755 2014
Kepler-372 d this Super-Earth 1.69 3.50 30.093 660 2014

Kepler-372 d Planet Profile

Physical Specs

Radius
1.69 R⊕
Radius (Jupiter)
0.151 R♃
Mass
3.50 M⊕
Mass (Jupiter)
0.011 M♃
Density
3.98 g/cm³
Surface Gravity
1.23 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.441
HZ Position Inner
Controversial No

Discovery

Year 2014
Method Transit
Facility Kepler
Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#415of 1176

top 35.2%

This planet

1.69R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Metric Earth Kepler-372 d Jupiter
Radius (R⊕)1.001.6911.21
Mass (M⊕)1.003.50317.83
Density (g/cm³)5.513.981.33
Surface Gravity (g)1.001.232.53
Insolation (S⊕)1.0053.470.037

Star Catalogue Identifiers

TIC

TIC 350810559

Gaia DR2

Gaia DR2 2129931942027348608

Gaia DR3

Gaia DR3 2129931942027348608

System

Kepler-372

Percentile among Super-Earth cohort

Radius 1.690 R⊕ · percentile 64 / cohort 1176
Mass 3.500 M⊕ · percentile 58 / cohort 1176
Orbital period 30.09 d · percentile 92 / cohort 1164
Distance 1,493.95 pc · percentile 95 / cohort 1171
ESI 0.441 · percentile 66 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period
30.093 days
Semi-major axis
0.2010 AU
Eccentricity
0.000
Inclination
86.73 °

Year Length

A year here lasts approximately 30.09 Earth days (8.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2010 AU.

Transit Fingerprint

Depth

0.024 %

Duration

7.499 h

Impact parameter b

0.300

Rp / R★

0.017063

Transit midpoint (BJD)

2,454,982.0308

Photometric dip

Transit produces a flux drop of 243 ppm lasting ≈ 7.50 h.

Extended Orbital Architecture

Planet / star radius ratio

0.017063

Semi-major axis / stellar radius

9.590

Impact parameter (b)

0.300

Transit mid-time (BJD)

2,454,982.0308

Angular separation (arcsec)

0.13500

Eq. Temperature

660K

(387 °C)

Insolation (S⊕)

53.47

Earth = 1.00

Earth Similarity (ESI)

0.441

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. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Host System: Kepler-372

Spectral Class

F-type yellow-white

Effective Temperature

6,509 K — hotter than the Sun (5,778 K)

Estimated Age

2.35 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.137 R☉

Stellar Mass

1.202 M☉

Metallicity [Fe/H]

-0.13

Extended Stellar Properties

Surface gravity (log g)

4.405 dex

Stellar density

0.540 g/cm³

Metallicity ratio

[Fe/H]

Distance
1,493.95 parsec
Light-years 4,872.61 ly
V-band magnitude
14.93 mag
Voyager-speed travel 85,928,430 yr

Multi-band Host Photometry — 16 bands

9.116.016.02B14.93V14.83Gaia14.88Kepler14.43TESS15.22Sloan g14.83Sloan r14.74Sloan i14.72Sloan z13.88J13.56H13.56K13.53W113.55W213.07W39.14W4

Astrometric Data

Parallax

0.641 mas

Total Proper Motion

10.055 mas/yr

PM Right Ascension

2.76 mas/yr

PM Declination

-9.67 mas/yr

Galactic Cartesian (pc)

x = 0.237 · y = -0.608 · z = 0.758

Equatorial (J2000)

RA 291.25623° · Dec 49.25893°

Galactic ℓ, b

80.960° · 15.110°

Ecliptic λ, β

312.667° · 69.568°

HTM-20 index

834675868

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