Key parameters at a glance

A radius of 2.70 Earth radii
A mass of 7.75 Earth masses
Surface gravity around 1.06 g
An orbital period of 28.267 days
Semi-major axis 0.1701 AU
Equilibrium temperature 517 K (244 °C)
Distance from Earth 1,988.37 light-years
Earth Similarity Index 0.468
Travel time at Voyager 1 speed 35,064,919 years

Kepler-995 b Planet Profile

Physical Specs

Radius

2.70 R⊕

Radius (Jupiter)

0.241 R♃

Mass

7.75 M⊕

Mass (Jupiter)

0.024 M♃

Density

2.16 g/cm³

Surface Gravity

1.06 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.468

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

#865of 1978

top 43.7%

This planet

2.70R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-259 c 2.70 R⊕ Kepler-668 b 2.70 R⊕ Kepler-32 d 2.70 R⊕

Metric	Earth	Kepler-995 b	Jupiter
Radius (R⊕)	1.00	2.70	11.21
Mass (M⊕)	1.00	7.75	317.83
Density (g/cm³)	5.51	2.16	1.33
Surface Gravity (g)	1.00	1.06	2.53
Insolation (S⊕)	1.00	11.92	0.037

Star Catalogue Identifiers

TIC

TIC 120315006

Gaia DR2

Gaia DR2 2100214788429438336

Gaia DR3

Gaia DR3 2100214788429438336

System

Kepler-995

Percentile among Sub-Neptune cohort

Radius 2.700 R⊕ · percentile 56 / cohort 1978

Mass 7.750 M⊕ · percentile 51 / cohort 1978

Orbital period 28.27 d · percentile 72 / cohort 1946

Distance 609.64 pc · percentile 53 / cohort 1975

ESI 0.468 · percentile 66 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

28.267 days

Semi-major axis

0.1701 AU

Eccentricity

0.000

Inclination

89.99 °

Year Length

A year here lasts approximately 28.27 Earth days (7.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1701 AU.

Transit Fingerprint

Depth

0.121 %

Duration

4.569 h

Impact parameter b

0.120

Rp / R★

0.031210

Transit midpoint (BJD)

2,454,973.9250

Photometric dip

Transit produces a flux drop of 1,208 ppm lasting ≈ 4.57 h.

Extended Orbital Architecture

Planet / star radius ratio

0.031210

Semi-major axis / stellar radius

48.540

Impact parameter (b)

0.120

Transit mid-time (BJD)

2,454,973.9250

Angular separation (arcsec)

0.27900

Eq. Temperature

517K

(244 °C)

Insolation (S⊕)

11.92

Earth = 1.00

Earth Similarity (ESI)

0.468

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-995

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,206 K — cooler than the Sun (5,778 K)

Estimated Age

5.01 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

0.800 R☉

Stellar Mass

0.830 M☉

Metallicity [Fe/H]

-0.07

Extended Stellar Properties

Surface gravity (log g)

4.570 dex

Stellar density

2.685 g/cm³

Metallicity ratio

[Fe/H]

Distance

609.64 parsec

Light-years 1,988.37 ly

V-band magnitude

15.17 mag

Voyager-speed travel 35,064,919 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.612 mas

Total Proper Motion

5.407 mas/yr

PM Right Ascension

0.94 mas/yr

PM Declination

-5.33 mas/yr

Galactic Cartesian (pc)

x = 0.196 · y = -0.751 · z = 0.631

Equatorial (J2000)

RA 284.61572° · Dec 39.13100°

Galactic ℓ, b

69.374° · 15.463°

Ecliptic λ, β

294.094° · 61.353°

HTM-20 index

-369943676