Key parameters at a glance

A radius of 2.94 Earth radii
A mass of 8.96 Earth masses
Surface gravity around 1.04 g
An orbital period of 24.758 days
Semi-major axis 0.1688 AU
Equilibrium temperature 644 K (371 °C)
Distance from Earth 4,846.09 light-years
Earth Similarity Index 0.369
Travel time at Voyager 1 speed 85,460,811 years

Kepler-1041 b Planet Profile

Physical Specs

Radius

2.94 R⊕

Radius (Jupiter)

0.262 R♃

Mass

8.96 M⊕

Mass (Jupiter)

0.028 M♃

Density

1.94 g/cm³

Surface Gravity

1.04 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.369

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

#570of 1978

top 28.8%

This planet

2.94R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-210 b 2.94 R⊕ Kepler-67 b 2.94 R⊕ Kepler-58 d 2.94 R⊕

Metric	Earth	Kepler-1041 b	Jupiter
Radius (R⊕)	1.00	2.94	11.21
Mass (M⊕)	1.00	8.96	317.83
Density (g/cm³)	5.51	1.94	1.33
Surface Gravity (g)	1.00	1.04	2.53
Insolation (S⊕)	1.00	117.96	0.037

Star Catalogue Identifiers

TIC

TIC 27007509

Gaia DR2

Gaia DR2 2135071712211140608

Gaia DR3

Gaia DR3 2135071712211140608

System

Kepler-1041

Percentile among Sub-Neptune cohort

Radius 2.940 R⊕ · percentile 71 / cohort 1978

Mass 8.960 M⊕ · percentile 65 / cohort 1978

Orbital period 24.76 d · percentile 69 / cohort 1946

Distance 1,485.82 pc · percentile 93 / cohort 1975

ESI 0.369 · percentile 46 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

24.758 days

Semi-major axis

0.1688 AU

Eccentricity

0.000

Inclination

86.17 °

Year Length

A year here lasts approximately 24.76 Earth days (6.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1688 AU.

Transit Fingerprint

Depth

0.046 %

Duration

7.361 h

Impact parameter b

0.861

Rp / R★

0.024578

Transit midpoint (BJD)

2,454,975.0689

Photometric dip

Transit produces a flux drop of 459 ppm lasting ≈ 7.36 h.

Extended Orbital Architecture

Planet / star radius ratio

0.024578

Semi-major axis / stellar radius

14.920

Impact parameter (b)

0.861

Transit mid-time (BJD)

2,454,975.0689

Angular separation (arcsec)

0.11400

Eq. Temperature

644K

(371 °C)

Insolation (S⊕)

117.96

Earth = 1.00

Earth Similarity (ESI)

0.369

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-1041

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,957 K — hotter than the Sun (5,778 K)

Estimated Age

3.55 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.080 R☉

Stellar Mass

1.060 M☉

Metallicity [Fe/H]

0.01

Extended Stellar Properties

Surface gravity (log g)

4.400 dex

Stellar density

0.074 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,485.82 parsec

Light-years 4,846.09 ly

V-band magnitude

14.58 mag

Voyager-speed travel 85,460,811 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.644 mas

Total Proper Motion

1.527 mas/yr

PM Right Ascension

0.51 mas/yr

PM Declination

1.44 mas/yr

Galactic Cartesian (pc)

x = 0.262 · y = -0.592 · z = 0.762

Equatorial (J2000)

RA 293.88174° · Dec 49.68314°

Galactic ℓ, b

82.103° · 13.744°

Ecliptic λ, β

317.558° · 69.211°

HTM-20 index

331928382