Key parameters at a glance

A radius of 1.86 Earth radii
A mass of 4.12 Earth masses
Surface gravity around 1.19 g
An orbital period of 39.819 days
Semi-major axis 0.2415 AU
Equilibrium temperature 650 K (377 °C)
Distance from Earth 2,954.40 light-years
Earth Similarity Index 0.433
Travel time at Voyager 1 speed 52,100,887 years

Context from the literature

The list of exoplanets detected by the Kepler space telescope contains bodies with a wide variety of properties, with significant ranges in orbital distances, masses, radii, composition, habitability, and host star type. As of June 16 2023, the Kepler space telescope and its follow-up observations have detected 2,778 planets, including hot Jupiters, super-Earths, circumbinary planets, and planets located in the circumstellar habitable zones of their host stars. Kepler has detected over 3,601 unconfirmed planet candidates and 2,165 eclipsing binary stars.

Excerpted from Wikipedia · full article

1 sibling around Kepler-1488

Kepler-1488 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-1488 c	Super-Earth	1.65	3.37	6.158	1,212	2021
Kepler-1488 b this	Super-Earth	1.86	4.12	39.819	650	2016

Kepler-1488 b Planet Profile

Physical Specs

Radius

1.86 R⊕

Radius (Jupiter)

0.166 R♃

Mass

4.12 M⊕

Mass (Jupiter)

0.013 M♃

Density

3.52 g/cm³

Surface Gravity

1.19 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.433

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

#177of 1176

top 15.0%

This planet

1.86R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-299 d 1.86 R⊕ Kepler-191 c 1.86 R⊕ Kepler-265 b 1.86 R⊕

Metric	Earth	Kepler-1488 b	Jupiter
Radius (R⊕)	1.00	1.86	11.21
Mass (M⊕)	1.00	4.12	317.83
Density (g/cm³)	5.51	3.52	1.33
Surface Gravity (g)	1.00	1.19	2.53
Insolation (S⊕)	1.00	73.34	0.037

Star Catalogue Identifiers

TIC

TIC 399825584

Gaia DR2

Gaia DR2 2133584309198180736

Gaia DR3

Gaia DR3 2133584309198180736

System

Kepler-1488

Percentile among Super-Earth cohort

Radius 1.860 R⊕ · percentile 84 / cohort 1176

Mass 4.120 M⊕ · percentile 77 / cohort 1176

Orbital period 39.82 d · percentile 94 / cohort 1164

Distance 905.83 pc · percentile 75 / cohort 1171

ESI 0.433 · percentile 65 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

39.819 days

Semi-major axis

0.2415 AU

Eccentricity

0.000

Inclination

88.51 °

Year Length

A year here lasts approximately 39.82 Earth days (10.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.2415 AU.

Transit Fingerprint

Depth

0.020 %

Duration

10.798 h

Impact parameter b

0.007

Rp / R★

0.012817

Transit midpoint (BJD)

2,454,999.6467

Photometric dip

Transit produces a flux drop of 196 ppm lasting ≈ 10.80 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012817

Semi-major axis / stellar radius

28.538

Impact parameter (b)

0.007

Transit mid-time (BJD)

2,454,999.6467

Angular separation (arcsec)

0.26700

Eq. Temperature

650K

(377 °C)

Insolation (S⊕)

73.34

Earth = 1.00

Earth Similarity (ESI)

0.433

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-1488

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,820 K — hotter than the Sun (5,778 K)

Estimated Age

6.92 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.310 R☉

Stellar Mass

1.050 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.220 dex

Stellar density

0.170 g/cm³

Metallicity ratio

[Fe/H]

Distance

905.83 parsec

Light-years 2,954.40 ly

V-band magnitude

13.15 mag

Voyager-speed travel 52,100,887 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.075 mas

Total Proper Motion

9.334 mas/yr

PM Right Ascension

1.90 mas/yr

PM Declination

9.14 mas/yr

Galactic Cartesian (pc)

x = 0.184 · y = -0.617 · z = 0.765

Equatorial (J2000)

RA 286.64643° · Dec 49.93777°

Galactic ℓ, b

80.419° · 18.129°

Ecliptic λ, β

305.201° · 71.348°

HTM-20 index

363175723

Wikipedia → Image: Wikimedia Commons · NASA Ames/JPL-Caltech · Public domain