Key parameters at a glance

A radius of 1.66 Earth radii
A mass of 3.39 Earth masses
Surface gravity around 1.23 g
An orbital period of 2.504 days
Equilibrium temperature 1,425 K (1152 °C)
Distance from Earth 1,216.82 light-years
Earth Similarity Index 0.194
Travel time at Voyager 1 speed 21,458,554 years

K2-294 b Planet Profile

Physical Specs

Radius

1.66 R⊕

Radius (Jupiter)

0.148 R♃

Mass

3.39 M⊕

Mass (Jupiter)

0.011 M♃

Density

4.07 g/cm³

Surface Gravity

1.23 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.194

HZ Position Unknown

Controversial No

Discovery

Year 2019

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#469of 1176

top 39.8%

This planet

1.66R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-379 b 1.66 R⊕ Kepler-1497 b 1.66 R⊕ GJ 357 c 1.66 R⊕

Metric	Earth	K2-294 b	Jupiter
Radius (R⊕)	1.00	1.66	11.21
Mass (M⊕)	1.00	3.39	317.83
Density (g/cm³)	5.51	4.07	1.33
Surface Gravity (g)	1.00	1.23	2.53
Insolation (S⊕)	1.00	—	0.037

Star Catalogue Identifiers

TIC

TIC 49709169

Gaia DR2

Gaia DR2 2438623297559630592

Gaia DR3

Gaia DR3 2438623297559630592

System

K2-294

Percentile among Super-Earth cohort

Radius 1.660 R⊕ · percentile 59 / cohort 1176

Mass 3.390 M⊕ · percentile 54 / cohort 1176

Orbital period 2.50 d · percentile 16 / cohort 1164

Distance 373.08 pc · percentile 38 / cohort 1171

ESI 0.194 · percentile 11 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

2.504 days

Semi-major axis

— AU

Eccentricity

—

Inclination

85.50 °

Year Length

A year here lasts approximately 2.50 Earth days (0.7% of a terrestrial year).

Transit Fingerprint

Duration

2.600 h

Impact parameter b

0.510

Rp / R★

0.012620

Transit midpoint (BJD)

2,457,740.0093

Extended Orbital Architecture

Planet / star radius ratio

0.012620

Semi-major axis / stellar radius

6.490

Impact parameter (b)

0.510

Transit mid-time (BJD)

2,457,740.0093

Eq. Temperature

1,425K

(1152 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.194

0 = alien, 1 = Earth-identical

Insufficient insolation data — the dayside is scorched.

Discovery Paper

Primary reference

Dattilo et al. 2019

Instrument

Kepler CCD Array

Publication

2019-05

Observation locale

Space

Discovery cohort

Planets confirmed in 2019 at K2 (12 shown).

EPIC 206032309 b · Rocky Terrestrial EPIC 201833600 c · Rocky Terrestrial EPIC 206215704 b · Rocky Terrestrial EPIC 201754305 d · Rocky Terrestrial EPIC 201841433 b · Rocky Terrestrial EPIC 206317286 b · Rocky Terrestrial EPIC 201615463 c · Rocky Terrestrial EPIC 212499991 b · Super-Earth EPIC 220554210 c · Super-Earth EPIC 201497682 b · Rocky Terrestrial K2-133 e · Super-Earth EPIC 206024342 b · Super-Earth

Host System: K2-294

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,612 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.200 R☉

Stellar Mass

0.987 M☉

Metallicity [Fe/H]

0.19

Extended Stellar Properties

Surface gravity (log g)

4.200 dex

Stellar density

0.893 g/cm³

Systemic radial velocity

42.93 km/s

Metallicity ratio

[M/H]

Distance

373.08 parsec

Light-years 1,216.82 ly

V-band magnitude

12.65 mag

Voyager-speed travel 21,458,554 yr

Multi-band Host Photometry — 17 bands

Astrometric Data

Parallax

2.652 mas

Total Proper Motion

22.150 mas/yr

PM Right Ascension

5.48 mas/yr

PM Declination

-21.46 mas/yr

Galactic Cartesian (pc)

x = 0.982 · y = -0.137 · z = -0.132

Equatorial (J2000)

RA 352.05167° · Dec -7.60379°

Galactic ℓ, b

73.806° · -62.247°

Ecliptic λ, β

349.697° · -3.835°

HTM-20 index

-177428536