Key parameters at a glance

A radius of 1.93 Earth radii
A mass of 4.38 Earth masses
Surface gravity around 1.18 g
An orbital period of 3.016 days
Semi-major axis 0.0408 AU
Equilibrium temperature 1,449 K (1176 °C)
Distance from Earth 3,248.86 light-years
Earth Similarity Index 0.181
Travel time at Voyager 1 speed 57,293,576 years

Kepler-1745 b Planet Profile

Physical Specs

Radius

1.93 R⊕

Radius (Jupiter)

0.172 R♃

Mass

4.38 M⊕

Mass (Jupiter)

0.014 M♃

Density

3.35 g/cm³

Surface Gravity

1.18 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.181

HZ Position Inner

Controversial No

Discovery

Year 2021

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#99of 1176

top 8.3%

This planet

1.93R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

K2-414 c 1.93 R⊕ Kepler-231 c 1.93 R⊕ Kepler-298 c 1.93 R⊕

Metric	Earth	Kepler-1745 b	Jupiter
Radius (R⊕)	1.00	1.93	11.21
Mass (M⊕)	1.00	4.38	317.83
Density (g/cm³)	5.51	3.35	1.33
Surface Gravity (g)	1.00	1.18	2.53
Insolation (S⊕)	1.00	1,044.49	0.037

Star Catalogue Identifiers

TIC

TIC 270525576

Gaia DR2

Gaia DR2 2077819763799736192

Gaia DR3

Gaia DR3 2077819763799736192

System

Kepler-1745

Percentile among Super-Earth cohort

Radius 1.929 R⊕ · percentile 92 / cohort 1176

Mass 4.380 M⊕ · percentile 84 / cohort 1176

Orbital period 3.02 d · percentile 22 / cohort 1164

Distance 996.11 pc · percentile 80 / cohort 1171

ESI 0.181 · percentile 9 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

3.016 days

Semi-major axis

0.0408 AU

Eccentricity

0.000

Inclination

82.72 °

Year Length

A year here lasts approximately 3.02 Earth days (0.8% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0408 AU.

Transit Fingerprint

Depth

0.022 %

Duration

2.835 h

Impact parameter b

0.030

Rp / R★

0.013820

Transit midpoint (BJD)

2,454,966.8840

Photometric dip

Transit produces a flux drop of 223 ppm lasting ≈ 2.83 h.

Extended Orbital Architecture

Planet / star radius ratio

0.013820

Semi-major axis / stellar radius

8.690

Impact parameter (b)

0.030

Transit mid-time (BJD)

2,454,966.8840

Angular separation (arcsec)

0.04100

Eq. Temperature

1,449K

(1176 °C)

Insolation (S⊕)

1,044.49

Earth = 1.00

Earth Similarity (ESI)

0.181

0 = alien, 1 = Earth-identical

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

Discovery Paper

Primary reference

Valizadegan et al. 2022

Instrument

Kepler CCD Array

Publication

2022-02

Observation locale

Space

Discovery cohort

Planets confirmed in 2021 at Kepler (12 shown).

Kepler-1816 b · Super-Earth Kepler-1705 c · Sub-Neptune Kepler-1948 b · Rocky Terrestrial Kepler-196 d · Sub-Neptune Kepler-1853 b · Super-Earth Kepler-1840 b · Sub-Neptune Kepler-1881 b · Sub-Neptune Kepler-1858 b · Sub-Neptune Kepler-1874 b · Sub-Neptune Kepler-1802 c · Sub-Neptune Kepler-1749 b · Super-Earth Kepler-1849 b · Sub-Neptune

Host System: Kepler-1745

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,611 K — cooler than the Sun (5,778 K)

Estimated Age

2.10 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.400 R☉

Stellar Mass

0.995 M☉

Metallicity [Fe/H]

0.16

Extended Stellar Properties

Surface gravity (log g)

4.144 dex

Stellar density

0.401 g/cm³

Metallicity ratio

[Fe/H]

Distance

996.11 parsec

Light-years 3,248.86 ly

V-band magnitude

14.85 mag

Voyager-speed travel 57,293,576 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.976 mas

Total Proper Motion

11.222 mas/yr

PM Right Ascension

0.17 mas/yr

PM Declination

-11.22 mas/yr

Galactic Cartesian (pc)

x = 0.292 · y = -0.673 · z = 0.680

Equatorial (J2000)

RA 293.46899° · Dec 42.82236°

Galactic ℓ, b

75.687° · 10.939°

Ecliptic λ, β

310.096° · 63.032°

HTM-20 index

-89100793