Key parameters at a glance

A radius of 1.54 Earth radii
A mass of 2.99 Earth masses
Surface gravity around 1.26 g
An orbital period of 4.164 days
Equilibrium temperature 1,158 K (885 °C)
Distance from Earth 1,596.10 light-years
Earth Similarity Index 0.252
Travel time at Voyager 1 speed 28,147,276 years

1 sibling around K2-350

K2-350 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
K2-350 b this	Super-Earth	1.54	2.99	4.164	1,158	2021
K2-350 c	Sub-Neptune	2.74	7.95	19.992	687	2016

K2-350 b Planet Profile

Physical Specs

Radius

1.54 R⊕

Radius (Jupiter)

0.137 R♃

Mass

2.99 M⊕

Mass (Jupiter)

0.009 M♃

Density

4.50 g/cm³

Surface Gravity

1.26 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.252

HZ Position Unknown

Controversial No

Discovery

Year 2021

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#670of 1176

top 56.9%

This planet

1.54R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-337 b 1.54 R⊕ Kepler-274 b 1.54 R⊕ TOI-512 b 1.54 R⊕

Metric	Earth	K2-350 b	Jupiter
Radius (R⊕)	1.00	1.54	11.21
Mass (M⊕)	1.00	2.99	317.83
Density (g/cm³)	5.51	4.50	1.33
Surface Gravity (g)	1.00	1.26	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 294319820

Gaia DR2

Gaia DR2 3606709167752821632

Gaia DR3

Gaia DR3 3606709167752821632

System

K2-350

Percentile among Super-Earth cohort

Radius 1.540 R⊕ · percentile 42 / cohort 1176

Mass 2.990 M⊕ · percentile 38 / cohort 1176

Orbital period 4.16 d · percentile 33 / cohort 1164

Distance 489.37 pc · percentile 46 / cohort 1171

ESI 0.252 · percentile 23 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

4.164 days

Semi-major axis

— AU

Eccentricity

—

Inclination

— °

Year Length

A year here lasts approximately 4.16 Earth days (1.1% of a terrestrial year).

Transit Fingerprint

Duration

2.750 h

Impact parameter b

0.410

Rp / R★

0.013500

Transit midpoint (BJD)

2,457,219.2776

Extended Orbital Architecture

Planet / star radius ratio

0.013500

Semi-major axis / stellar radius

10.680

Impact parameter (b)

0.410

Transit mid-time (BJD)

2,457,219.2776

Eq. Temperature

1,158K

(885 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.252

0 = alien, 1 = Earth-identical

Insufficient insolation data — the dayside is scorched.

Discovery Paper

Primary reference

De Leon et al. 2021

Instrument

Kepler CCD Array

Publication

2021-08

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at K2 (12 shown).

EPIC 220492298 b · Rocky Terrestrial EPIC 206042996 c · Rocky Terrestrial EPIC 212624936 b · Rocky Terrestrial EPIC 206024342 c · Super-Earth EPIC 201427007 b · Super-Earth K2-332 b · Sub-Neptune EPIC 212624936 c · Sub-Neptune EPIC 206024342 d · Sub-Neptune K2-345 b · Sub-Neptune K2-349 b · Super-Earth K2-343 c · Sub-Neptune K2-346 b · Sub-Neptune

Host System: K2-350

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,789 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.040 R☉

Stellar Mass

0.980 M☉

Metallicity [Fe/H]

-0.02

Extended Stellar Properties

Surface gravity (log g)

4.390 dex

Stellar density

1.570 g/cm³

Rotation period

8.22 days

Metallicity ratio

[Fe/H]

Distance

489.37 parsec

Light-years 1,596.10 ly

V-band magnitude

13.45 mag

Voyager-speed travel 28,147,276 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

2.015 mas

Total Proper Motion

19.645 mas/yr

PM Right Ascension

-18.77 mas/yr

PM Declination

-5.80 mas/yr

Galactic Cartesian (pc)

x = -0.886 · y = -0.395 · z = -0.242

Equatorial (J2000)

RA 204.03551° · Dec -14.00925°

Galactic ℓ, b

319.081° · 47.456°

Ecliptic λ, β

207.373° · -3.721°

HTM-20 index

918524824