Key parameters at a glance

A radius of 3.28 Earth radii
A mass of 10.80 Earth masses
Surface gravity around 1.00 g
An orbital period of 77.255 days
Semi-major axis 0.3781 AU
Equilibrium temperature 548 K (275 °C)
Distance from Earth 4,510.15 light-years
Earth Similarity Index 0.410
Travel time at Voyager 1 speed 79,536,498 years

Kepler-1080 b Planet Profile

Physical Specs

Radius

3.28 R⊕

Radius (Jupiter)

0.293 R♃

Mass

10.80 M⊕

Mass (Jupiter)

0.034 M♃

Density

1.68 g/cm³

Surface Gravity

1.00 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.410

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

#291of 1978

top 14.7%

This planet

3.28R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

HD 18143 b 3.28 R⊕ Kepler-411 e 3.28 R⊕ Kepler-1530 d 3.28 R⊕

Metric	Earth	Kepler-1080 b	Jupiter
Radius (R⊕)	1.00	3.28	11.21
Mass (M⊕)	1.00	10.80	317.83
Density (g/cm³)	5.51	1.68	1.33
Surface Gravity (g)	1.00	1.00	2.53
Insolation (S⊕)	1.00	55.45	0.037

Star Catalogue Identifiers

TIC

TIC 27847814

Gaia DR2

Gaia DR2 2086818579276362624

Gaia DR3

Gaia DR3 2086818579276362624

System

Kepler-1080

Percentile among Sub-Neptune cohort

Radius 3.280 R⊕ · percentile 85 / cohort 1978

Mass 10.800 M⊕ · percentile 79 / cohort 1978

Orbital period 77.25 d · percentile 91 / cohort 1946

Distance 1,382.82 pc · percentile 91 / cohort 1975

ESI 0.410 · percentile 54 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

77.255 days

Semi-major axis

0.3781 AU

Eccentricity

0.000

Inclination

88.60 °

Year Length

A year here lasts approximately 77.25 Earth days (21.2% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.3781 AU.

Transit Fingerprint

Depth

0.061 %

Duration

10.294 h

Impact parameter b

0.919

Rp / R★

0.025578

Transit midpoint (BJD)

2,454,992.3224

Photometric dip

Transit produces a flux drop of 612 ppm lasting ≈ 10.29 h.

Extended Orbital Architecture

Planet / star radius ratio

0.025578

Semi-major axis / stellar radius

23.800

Impact parameter (b)

0.919

Transit mid-time (BJD)

2,454,992.3224

Angular separation (arcsec)

0.27300

Eq. Temperature

548K

(275 °C)

Insolation (S⊕)

55.45

Earth = 1.00

Earth Similarity (ESI)

0.410

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

Morton et al. 2016

Instrument

Kepler CCD Array

Publication

2016-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2016 at Kepler (12 shown).

Kepler-1512 b · Rocky Terrestrial Kepler-1410 b · Super-Earth Kepler-560 b · Super-Earth Kepler-1389 b · Super-Earth Kepler-1450 b · Super-Earth Kepler-1544 b · Super-Earth Kepler-1459 b · Super-Earth Kepler-1638 b · Super-Earth Kepler-737 b · Super-Earth Kepler-1185 b · Super-Earth Kepler-1178 b · Rocky Terrestrial Kepler-1040 b · Sub-Neptune

Host System: Kepler-1080

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,956 K — hotter than the Sun (5,778 K)

Estimated Age

3.89 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.160 R☉

Stellar Mass

1.100 M☉

Metallicity [Fe/H]

0.09

Extended Stellar Properties

Surface gravity (log g)

4.350 dex

Stellar density

0.117 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,382.82 parsec

Light-years 4,510.15 ly

V-band magnitude

13.49 mag

Voyager-speed travel 79,536,498 yr

Multi-band Host Photometry — 15 bands

Astrometric Data

Parallax

0.694 mas

Total Proper Motion

2.840 mas/yr

PM Right Ascension

-1.49 mas/yr

PM Declination

-2.42 mas/yr

Galactic Cartesian (pc)

x = 0.291 · y = -0.585 · z = 0.757

Equatorial (J2000)

RA 296.46449° · Dec 49.18290°

Galactic ℓ, b

82.425° · 12.020°

Ecliptic λ, β

321.003° · 67.989°

HTM-20 index

1803335704