Key parameters at a glance

A radius of 3.36 Earth radii
A mass of 11.20 Earth masses
Surface gravity around 0.99 g
An orbital period of 5.080 days
Semi-major axis 0.0645 AU
Equilibrium temperature 1,673 K (1400 °C)
Distance from Earth 3,459.47 light-years
Earth Similarity Index 0.123
Travel time at Voyager 1 speed 61,007,776 years

Kepler-541 b Planet Profile

Physical Specs

Radius

3.36 R⊕

Radius (Jupiter)

0.300 R♃

Mass

11.20 M⊕

Mass (Jupiter)

0.035 M♃

Density

1.62 g/cm³

Surface Gravity

0.99 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.123

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

#242of 1978

top 12.2%

This planet

3.36R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-1057 b 3.36 R⊕ Kepler-1510 b 3.36 R⊕ Kepler-1083 b 3.36 R⊕

Metric	Earth	Kepler-541 b	Jupiter
Radius (R⊕)	1.00	3.36	11.21
Mass (M⊕)	1.00	11.20	317.83
Density (g/cm³)	5.51	1.62	1.33
Surface Gravity (g)	1.00	0.99	2.53
Insolation (S⊕)	1.00	1,452.90	0.037

Star Catalogue Identifiers

TIC

TIC 138569175

Gaia DR2

Gaia DR2 2052168466766597120

Gaia DR3

Gaia DR3 2052168466766597120

System

Kepler-541

Percentile among Sub-Neptune cohort

Radius 3.360 R⊕ · percentile 87 / cohort 1978

Mass 11.200 M⊕ · percentile 81 / cohort 1978

Orbital period 5.08 d · percentile 12 / cohort 1946

Distance 1,060.68 pc · percentile 82 / cohort 1975

ESI 0.123 · percentile 1 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

5.080 days

Semi-major axis

0.0645 AU

Eccentricity

0.000

Inclination

83.85 °

Year Length

A year here lasts approximately 5.08 Earth days (1.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0645 AU.

Transit Fingerprint

Depth

0.022 %

Duration

5.259 h

Impact parameter b

0.427

Rp / R★

0.014743

Transit midpoint (BJD)

2,455,007.4278

Photometric dip

Transit produces a flux drop of 223 ppm lasting ≈ 5.26 h.

Extended Orbital Architecture

Planet / star radius ratio

0.014743

Semi-major axis / stellar radius

6.810

Impact parameter (b)

0.427

Transit mid-time (BJD)

2,455,007.4278

Angular separation (arcsec)

0.06080

Eq. Temperature

1,673K

(1400 °C)

Insolation (S⊕)

1,452.90

Earth = 1.00

Earth Similarity (ESI)

0.123

0 = alien, 1 = Earth-identical

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

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-541

Spectral Class

F-type yellow-white

Effective Temperature

6,166 K — hotter than the Sun (5,778 K)

Estimated Age

3.09 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.060 R☉

Stellar Mass

1.410 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

3.960 dex

Stellar density

0.160 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,060.68 parsec

Light-years 3,459.47 ly

V-band magnitude

13.38 mag

Voyager-speed travel 61,007,776 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.914 mas

Total Proper Motion

13.401 mas/yr

PM Right Ascension

-3.93 mas/yr

PM Declination

-12.81 mas/yr

Galactic Cartesian (pc)

x = 0.320 · y = -0.715 · z = 0.622

Equatorial (J2000)

RA 294.14965° · Dec 38.45821°

Galactic ℓ, b

72.003° · 8.462°

Ecliptic λ, β

308.124° · 58.743°

HTM-20 index

1132826421