Key parameters at a glance

A radius of 0.93 Earth radii
A mass of 0.75 Earth masses
Surface gravity around 0.87 g
An orbital period of 30.861 days
Semi-major axis 0.1830 AU
Equilibrium temperature 525 K (252 °C)
Distance from Earth 1,614.95 light-years
Earth Similarity Index 0.603
Travel time at Voyager 1 speed 28,479,728 years

Kepler-1505 b Planet Profile

Physical Specs

Radius

0.93 R⊕

Radius (Jupiter)

0.083 R♃

Mass

0.75 M⊕

Mass (Jupiter)

0.002 M♃

Density

5.12 g/cm³

Surface Gravity

0.87 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.603

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

#391of 570

top 68.4%

This planet

0.93R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-398 b 0.93 R⊕ Kepler-1421 b 0.93 R⊕ Gliese 12 b 0.93 R⊕

Metric	Earth	Kepler-1505 b	Jupiter
Radius (R⊕)	1.00	0.93	11.21
Mass (M⊕)	1.00	0.75	317.83
Density (g/cm³)	5.51	5.12	1.33
Surface Gravity (g)	1.00	0.87	2.53
Insolation (S⊕)	1.00	36.12	0.037

Star Catalogue Identifiers

TIC

TIC 137408775

Gaia DR2

Gaia DR2 2101689061725421312

Gaia DR3

Gaia DR3 2101689061725421312

System

Kepler-1505

Percentile among Rocky Terrestrial cohort

Radius 0.930 R⊕ · percentile 31 / cohort 570

Mass 0.749 M⊕ · percentile 27 / cohort 570

Orbital period 30.86 d · percentile 97 / cohort 567

Distance 495.15 pc · percentile 63 / cohort 566

ESI 0.603 · percentile 78 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

30.861 days

Semi-major axis

0.1830 AU

Eccentricity

0.000

Inclination

88.40 °

Year Length

A year here lasts approximately 30.86 Earth days (8.4% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1830 AU.

Transit Fingerprint

Depth

0.013 %

Duration

4.109 h

Impact parameter b

0.278

Rp / R★

0.009712

Transit midpoint (BJD)

2,454,971.3155

Photometric dip

Transit produces a flux drop of 129 ppm lasting ≈ 4.11 h.

Extended Orbital Architecture

Planet / star radius ratio

0.009712

Semi-major axis / stellar radius

30.500

Impact parameter (b)

0.278

Transit mid-time (BJD)

2,454,971.3155

Angular separation (arcsec)

0.37000

Eq. Temperature

525K

(252 °C)

Insolation (S⊕)

36.12

Earth = 1.00

Earth Similarity (ESI)

0.603

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-1505

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,686 K — cooler than the Sun (5,778 K)

Estimated Age

1.70 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.860 R☉

Stellar Mass

0.930 M☉

Metallicity [Fe/H]

-0.18

Extended Stellar Properties

Surface gravity (log g)

4.540 dex

Stellar density

0.520 g/cm³

Metallicity ratio

[Fe/H]

Distance

495.15 parsec

Light-years 1,614.95 ly

V-band magnitude

13.04 mag

Voyager-speed travel 28,479,728 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.991 mas

Total Proper Motion

6.283 mas/yr

PM Right Ascension

6.26 mas/yr

PM Declination

0.54 mas/yr

Galactic Cartesian (pc)

x = 0.279 · y = -0.691 · z = 0.666

Equatorial (J2000)

RA 292.00206° · Dec 41.78696°

Galactic ℓ, b

74.247° · 11.444°

Ecliptic λ, β

307.107° · 62.420°

HTM-20 index

-278929544