Key parameters at a glance

A radius of 1.42 Earth radii
A mass of 2.60 Earth masses
Surface gravity around 1.29 g
An orbital period of 23.127 days
Semi-major axis 0.1616 AU
Equilibrium temperature 667 K (394 °C)
Distance from Earth 915.29 light-years
Earth Similarity Index 0.461
Travel time at Voyager 1 speed 16,141,109 years

Kepler-1088 b Planet Profile

Physical Specs

Radius

1.42 R⊕

Radius (Jupiter)

0.127 R♃

Mass

2.60 M⊕

Mass (Jupiter)

0.008 M♃

Density

4.99 g/cm³

Surface Gravity

1.29 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.461

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

#884of 1176

top 75.1%

This planet

1.42R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-763 c 1.42 R⊕ Kepler-1290 b 1.42 R⊕ TOI-286 b 1.42 R⊕

Metric	Earth	Kepler-1088 b	Jupiter
Radius (R⊕)	1.00	1.42	11.21
Mass (M⊕)	1.00	2.60	317.83
Density (g/cm³)	5.51	4.99	1.33
Surface Gravity (g)	1.00	1.29	2.53
Insolation (S⊕)	1.00	44.89	0.037

Star Catalogue Identifiers

TIC

TIC 123316231

Gaia DR2

Gaia DR2 2104727081069413376

Gaia DR3

Gaia DR3 2104727081069413376

System

Kepler-1088

Percentile among Super-Earth cohort

Radius 1.420 R⊕ · percentile 24 / cohort 1176

Mass 2.600 M⊕ · percentile 23 / cohort 1176

Orbital period 23.13 d · percentile 88 / cohort 1164

Distance 280.63 pc · percentile 30 / cohort 1171

ESI 0.461 · percentile 69 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

23.127 days

Semi-major axis

0.1616 AU

Eccentricity

0.000

Inclination

88.31 °

Year Length

A year here lasts approximately 23.13 Earth days (6.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1616 AU.

Transit Fingerprint

Depth

0.016 %

Duration

4.923 h

Impact parameter b

0.393

Rp / R★

0.011803

Transit midpoint (BJD)

2,454,978.6596

Photometric dip

Transit produces a flux drop of 162 ppm lasting ≈ 4.92 h.

Extended Orbital Architecture

Planet / star radius ratio

0.011803

Semi-major axis / stellar radius

33.500

Impact parameter (b)

0.393

Transit mid-time (BJD)

2,454,978.6596

Angular separation (arcsec)

0.57600

Eq. Temperature

667K

(394 °C)

Insolation (S⊕)

44.89

Earth = 1.00

Earth Similarity (ESI)

0.461

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-1088

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,975 K — hotter than the Sun (5,778 K)

Estimated Age

3.02 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.080 R☉

Stellar Mass

1.080 M☉

Metallicity [Fe/H]

0.05

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

1.030 g/cm³

Systemic radial velocity

-16.76 km/s

Metallicity ratio

[Fe/H]

Distance

280.63 parsec

Light-years 915.29 ly

V-band magnitude

11.47 mag

Voyager-speed travel 16,141,109 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

3.535 mas

Total Proper Motion

19.591 mas/yr

PM Right Ascension

-0.52 mas/yr

PM Declination

-19.58 mas/yr

Galactic Cartesian (pc)

x = 0.148 · y = -0.723 · z = 0.675

Equatorial (J2000)

RA 281.56146° · Dec 42.45041°

Galactic ℓ, b

71.731° · 18.823°

Ecliptic λ, β

290.533° · 65.068°

HTM-20 index

-1855072290