Key parameters at a glance

A radius of 29.33 Earth radii
An orbital period of 18.508 days
Semi-major axis 0.1383 AU
Equilibrium temperature 683 K (410 °C)
Distance from Earth 3,510.32 light-years
Earth Similarity Index 0.107
Travel time at Voyager 1 speed 61,904,475 years

Kepler-1979 b Planet Profile

Physical Specs

Radius

29.33 R⊕

Radius (Jupiter)

2.617 R♃

Mass

— M⊕

Mass (Jupiter)

— M♃

Density

— g/cm³

Surface Gravity

— g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.107

HZ Position Inner

Controversial No

Discovery

Year 2023

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#5of 1771

top 0.2%

This planet

29.33R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

DH Tau b 30.26 R⊕ Kepler-297 d 32.60 R⊕ GQ Lup b 33.60 R⊕

Metric	Earth	Kepler-1979 b	Jupiter
Radius (R⊕)	1.00	29.33	11.21
Mass (M⊕)	1.00	—	317.83
Density (g/cm³)	5.51	—	1.33
Surface Gravity (g)	1.00	—	2.53
Insolation (S⊕)	1.00	51.32	0.037

Star Catalogue Identifiers

TIC

TIC 122142813

Gaia DR2

Gaia DR2 2051368434612892800

Gaia DR3

Gaia DR3 2051368434612892800

System

Kepler-1979

Percentile among Gas Giant cohort

Radius 29.330 R⊕ · percentile 100 / cohort 1771

Orbital period 18.51 d · percentile 47 / cohort 1533

Distance 1,076.27 pc · percentile 87 / cohort 1759

ESI 0.107 · percentile 28 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

18.508 days

Semi-major axis

0.1383 AU

Eccentricity

0.000

Inclination

77.63 °

Year Length

A year here lasts approximately 18.51 Earth days (5.1% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1383 AU.

Transit Fingerprint

Depth

0.076 %

Duration

6.596 h

Impact parameter b

1.258

Rp / R★

0.286358

Transit midpoint (BJD)

2,454,964.5456

Photometric dip

Transit produces a flux drop of 759 ppm lasting ≈ 6.60 h.

Extended Orbital Architecture

Planet / star radius ratio

0.286358

Semi-major axis / stellar radius

5.880

Impact parameter (b)

1.258

Transit mid-time (BJD)

2,454,964.5456

Angular separation (arcsec)

0.12800

Eq. Temperature

683K

(410 °C)

Insolation (S⊕)

51.32

Earth = 1.00

Earth Similarity (ESI)

0.107

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Transit timing variations

Gravitational interactions from neighbours have been detected.

Discovery Paper

Primary reference

Valizadegan et al. 2023

Instrument

Kepler CCD Array

Publication

2023-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2023 at Kepler (12 shown).

Kepler-1126 c · Super-Earth Kepler-2000 c · Super-Earth Kepler-1052 c · Sub-Neptune Kepler-311 d · Sub-Neptune Kepler-1996 c · Sub-Neptune Kepler-1162 c · Super-Earth Kepler-1996 b · Sub-Neptune Kepler-1610 c · Sub-Neptune Kepler-1801 c · Sub-Neptune Kepler-1995 b · Neptune-like Kepler-1992 b · Rocky Terrestrial Kepler-1986 b · Super-Earth

Host System: Kepler-1979

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,942 K — hotter than the Sun (5,778 K)

Estimated Age

0.40 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.938 R☉

Stellar Mass

1.028 M☉

Metallicity [Fe/H]

-0.06

Extended Stellar Properties

Surface gravity (log g)

4.506 dex

Stellar density

0.011 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,076.27 parsec

Light-years 3,510.32 ly

V-band magnitude

15.48 mag

Voyager-speed travel 61,904,475 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

0.901 mas

Total Proper Motion

3.346 mas/yr

PM Right Ascension

3.07 mas/yr

PM Declination

1.33 mas/yr

Galactic Cartesian (pc)

x = 0.266 · y = -0.738 · z = 0.620

Equatorial (J2000)

RA 289.84291° · Dec 38.30962°

Galactic ℓ, b

70.320° · 11.406°

Ecliptic λ, β

301.736° · 59.581°

HTM-20 index

-460791027