Confirmed Exoplanet Discovered 2016

Kepler-1541 b

A rocky terrestrial orbiting the g-type yellow (sun-like) Kepler-1541, located approximately 1,359.1 light-years from Earth.

Key parameters at a glance

  • A radius of 1.16 Earth radii
  • A mass of 1.65 Earth masses
  • Surface gravity around 1.23 g
  • An orbital period of 8.407 days
  • Semi-major axis 0.0756 AU
  • Equilibrium temperature 1,048 K (775 °C)
  • Distance from Earth 1,359.07 light-years
  • Earth Similarity Index 0.299
  • Travel time at Voyager 1 speed 23,967,127 years

Kepler-1541 b Planet Profile

Physical Specs

Radius
1.16 R⊕
Radius (Jupiter)
0.103 R♃
Mass
1.65 M⊕
Mass (Jupiter)
0.005 M♃
Density
5.81 g/cm³
Surface Gravity
1.23 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.299
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

#147of 570

top 25.6%

This planet

1.16R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Metric Earth Kepler-1541 b Jupiter
Radius (R⊕)1.001.1611.21
Mass (M⊕)1.001.65317.83
Density (g/cm³)5.515.811.33
Surface Gravity (g)1.001.232.53
Insolation (S⊕)1.0075.560.037

Star Catalogue Identifiers

TIC

TIC 48353902

Gaia DR2

Gaia DR2 2131643641112197888

Gaia DR3

Gaia DR3 2131643641112197888

System

Kepler-1541

Percentile among Rocky Terrestrial cohort

Radius 1.160 R⊕ · percentile 73 / cohort 570
Mass 1.650 M⊕ · percentile 66 / cohort 570
Orbital period 8.41 d · percentile 75 / cohort 567
Distance 416.69 pc · percentile 55 / cohort 566
ESI 0.299 · percentile 38 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period
8.407 days
Semi-major axis
0.0756 AU
Eccentricity
0.000
Inclination
89.97 °

Year Length

A year here lasts approximately 8.41 Earth days (2.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0756 AU.

Transit Fingerprint

Depth

0.020 %

Duration

1.879 h

Impact parameter b

0.205

Rp / R★

0.012861

Transit midpoint (BJD)

2,454,966.4269

Photometric dip

Transit produces a flux drop of 202 ppm lasting ≈ 1.88 h.

Extended Orbital Architecture

Planet / star radius ratio

0.012861

Semi-major axis / stellar radius

33.920

Impact parameter (b)

0.205

Transit mid-time (BJD)

2,454,966.4269

Angular separation (arcsec)

0.18100

Eq. Temperature

1,048K

(775 °C)

Insolation (S⊕)

75.56

Earth = 1.00

Earth Similarity (ESI)

0.299

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

Host System: Kepler-1541

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,282 K — cooler than the Sun (5,778 K)

Estimated Age

4.47 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.810 R☉

Stellar Mass

0.860 M☉

Metallicity [Fe/H]

-0.04

Extended Stellar Properties

Surface gravity (log g)

4.560 dex

Stellar density

1.450 g/cm³

Metallicity ratio

[Fe/H]

Distance
416.69 parsec
Light-years 1,359.07 ly
V-band magnitude
13.94 mag
Voyager-speed travel 23,967,127 yr

Multi-band Host Photometry — 16 bands

9.115.315.35B13.94V13.79Gaia13.80Kepler13.24TESS14.43Sloan g13.74Sloan r13.53Sloan i13.43Sloan z12.45J12.03H11.93K11.92W111.98W211.97W39.15W4

Astrometric Data

Parallax

2.371 mas

Total Proper Motion

14.919 mas/yr

PM Right Ascension

14.35 mas/yr

PM Declination

4.07 mas/yr

Galactic Cartesian (pc)

x = 0.159 · y = -0.649 · z = 0.743

Equatorial (J2000)

RA 283.78709° · Dec 48.02960°

Galactic ℓ, b

77.845° · 19.231°

Ecliptic λ, β

297.964° · 70.133°

HTM-20 index

1417809726

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