Key parameters at a glance

A radius of 1.29 Earth radii
A mass of 2.21 Earth masses
Surface gravity around 1.33 g
An orbital period of 2.272 days
Semi-major axis 0.0351 AU
Equilibrium temperature 1,522 K (1249 °C)
Distance from Earth 8,847.24 light-years
Earth Similarity Index 0.193
Travel time at Voyager 1 speed 156,021,111 years

Kepler-1603 b Planet Profile

Physical Specs

Radius

1.29 R⊕

Radius (Jupiter)

0.115 R♃

Mass

2.21 M⊕

Mass (Jupiter)

0.007 M♃

Density

5.66 g/cm³

Surface Gravity

1.33 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.193

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

#1100of 1176

top 93.5%

This planet

1.29R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-211 c 1.29 R⊕ Kepler-312 b 1.29 R⊕ Kepler-173 b 1.29 R⊕

Metric	Earth	Kepler-1603 b	Jupiter
Radius (R⊕)	1.00	1.29	11.21
Mass (M⊕)	1.00	2.21	317.83
Density (g/cm³)	5.51	5.66	1.33
Surface Gravity (g)	1.00	1.33	2.53
Insolation (S⊕)	1.00	1,269.46	0.037

Star Catalogue Identifiers

TIC

TIC 271537714

Gaia DR2

Gaia DR2 2077891644372852864

Gaia DR3

Gaia DR3 2077891644372852864

System

Kepler-1603

Percentile among Super-Earth cohort

Radius 1.290 R⊕ · percentile 6 / cohort 1176

Mass 2.210 M⊕ · percentile 6 / cohort 1176

Orbital period 2.27 d · percentile 14 / cohort 1164

Distance 2,712.58 pc · percentile 99 / cohort 1171

ESI 0.193 · percentile 11 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

2.272 days

Semi-major axis

0.0351 AU

Eccentricity

0.000

Inclination

89.87 °

Year Length

A year here lasts approximately 2.27 Earth days (0.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0351 AU.

Transit Fingerprint

Depth

0.008 %

Duration

4.043 h

Impact parameter b

0.293

Rp / R★

0.008725

Transit midpoint (BJD)

2,454,964.8279

Photometric dip

Transit produces a flux drop of 82 ppm lasting ≈ 4.04 h.

Extended Orbital Architecture

Planet / star radius ratio

0.008725

Semi-major axis / stellar radius

4.356

Impact parameter (b)

0.293

Transit mid-time (BJD)

2,454,964.8279

Angular separation (arcsec)

0.01290

Eq. Temperature

1,522K

(1249 °C)

Insolation (S⊕)

1,269.46

Earth = 1.00

Earth Similarity (ESI)

0.193

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-1603

Spectral Class

F-type yellow-white

Effective Temperature

6,241 K — hotter than the Sun (5,778 K)

Estimated Age

2.82 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.310 R☉

Stellar Mass

1.210 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.280 dex

Stellar density

0.303 g/cm³

Metallicity ratio

[Fe/H]

Distance

2,712.58 parsec

Light-years 8,847.24 ly

V-band magnitude

15.40 mag

Voyager-speed travel 156,021,111 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.341 mas

Total Proper Motion

1.117 mas/yr

PM Right Ascension

-1.03 mas/yr

PM Declination

-0.44 mas/yr

Galactic Cartesian (pc)

x = 0.315 · y = -0.666 · z = 0.676

Equatorial (J2000)

RA 295.32983° · Dec 42.53497°

Galactic ℓ, b

76.072° · 9.593°

Ecliptic λ, β

312.653° · 62.274°

HTM-20 index

-1568982527