Key parameters at a glance

A radius of 1.95 Earth radii
A mass of 8.75 Earth masses
Surface gravity around 2.30 g
An orbital period of 3.595 days
Semi-major axis 0.0470 AU
Equilibrium temperature 1,616 K (1343 °C)
Distance from Earth 1,047.93 light-years
Earth Similarity Index 0.162
Travel time at Voyager 1 speed 18,480,177 years

2 siblings around EPIC 249893012

EPIC 249893012 b shares its host star with 2 other confirmed planets. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
EPIC 249893012 b this	Super-Earth	1.95	8.75	3.595	1,616	2020
EPIC 249893012 c	Sub-Neptune	3.67	14.67	15.624	990	2020
EPIC 249893012 d	Sub-Neptune	3.94	10.18	35.747	752	2020

EPIC 249893012 b Planet Profile

Physical Specs

Radius

1.95 R⊕

Radius (Jupiter)

0.174 R♃

Mass

8.75 M⊕

Mass (Jupiter)

0.028 M♃

Density

6.39 g/cm³

Surface Gravity

2.30 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.162

HZ Position Inner

Controversial No

Discovery

Year 2020

Method Transit

Facility K2

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#67of 1176

top 5.6%

This planet

1.95R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

K2-285 e 1.95 R⊕ Kepler-330 c 1.95 R⊕ Kepler-653 b 1.95 R⊕

Metric	Earth	EPIC 249893012 b	Jupiter
Radius (R⊕)	1.00	1.95	11.21
Mass (M⊕)	1.00	8.75	317.83
Density (g/cm³)	5.51	6.39	1.33
Surface Gravity (g)	1.00	2.30	2.53
Insolation (S⊕)	1.00	1,037.00	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Best measured mass	8.750 M⊕	Direct mass measurement (not derived).

Star Catalogue Identifiers

TIC

TIC 432254760

Gaia DR2

Gaia DR2 6259263137059042048

Gaia DR3

Gaia DR3 6259263137059042048

System

EPIC 249893012

Percentile among Super-Earth cohort

Radius 1.950 R⊕ · percentile 94 / cohort 1176

Mass 8.750 M⊕ · percentile 96 / cohort 1176

Orbital period 3.60 d · percentile 27 / cohort 1164

Distance 321.30 pc · percentile 34 / cohort 1171

ESI 0.162 · percentile 6 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

3.595 days

Semi-major axis

0.0470 AU

Eccentricity

0.060

Inclination

86.14 °

Year Length

A year here lasts approximately 3.60 Earth days (1.0% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0470 AU.

Transit Fingerprint

Duration

4.330 h

Impact parameter b

0.420

Rp / R★

0.010400

Transit midpoint (BJD)

2,457,994.3960

Extended Orbital Architecture

Planet / star radius ratio

0.010400

Semi-major axis / stellar radius

5.930

Impact parameter (b)

0.420

RV semi-amplitude (K)

3.550 m/s

Transit mid-time (BJD)

2,457,994.3960

Long. of periastron (ω)

225.00°

Angular separation (arcsec)

0.14600

Eq. Temperature

1,616K

(1343 °C)

Insolation (S⊕)

1,037.00

Earth = 1.00

Earth Similarity (ESI)

0.162

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the dayside is scorched.

Detection Signatures

Transit photometry

A transit dip has been observed from at least one telescope.

Radial velocity

Stellar wobble has been measured spectroscopically.

Discovery Paper

Primary reference

Hidalgo et al. 2020

Instrument

Kepler CCD Array

Publication

2020-04

Observation locale

Space

Discovery cohort

Planets confirmed in 2020 at K2 (12 shown).

EPIC 201170410.02 · Rocky Terrestrial EPIC 201757695.02 · Rocky Terrestrial K2-323 b · Sub-Neptune K2-315 b · Rocky Terrestrial K2-316 c · Super-Earth K2-318 b · Super-Earth K2-325 b · Sub-Neptune K2-317 b · Sub-Neptune K2-322 b · Super-Earth K2-319 b · Sub-Neptune K2-316 b · Super-Earth K2-324 b · Sub-Neptune

Host System: EPIC 249893012

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,430 K — cooler than the Sun (5,778 K)

Estimated Age

9.00 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

1.710 R☉

Stellar Mass

1.050 M☉

Metallicity [Fe/H]

0.20

Extended Stellar Properties

Surface gravity (log g)

3.990 dex

Stellar density

0.298 g/cm³

Systemic radial velocity

22.36 km/s

Rotational v·sin i

2.10 km/s

Rotation period

41.00 days

Metallicity ratio

[Fe/H]

Distance

321.30 parsec

Light-years 1,047.93 ly

V-band magnitude

11.43 mag

Voyager-speed travel 18,480,177 yr

Multi-band Host Photometry — 12 bands

Astrometric Data

Parallax

3.084 mas

Total Proper Motion

36.868 mas/yr

PM Right Ascension

13.55 mas/yr

PM Declination

-34.29 mas/yr

Galactic Cartesian (pc)

x = -0.638 · y = -0.714 · z = -0.288

Equatorial (J2000)

RA 228.24824° · Dec -16.72465°

Galactic ℓ, b

345.110° · 34.308°

Ecliptic λ, β

230.363° · 1.156°

HTM-20 index

-1485107263