Key parameters at a glance

A radius of 1.51 Earth radii
A mass of 2.89 Earth masses
Surface gravity around 1.27 g
An orbital period of 2.523 days
Semi-major axis 0.0360 AU
Equilibrium temperature 1,205 K (932 °C)
Distance from Earth 2,669.53 light-years
Earth Similarity Index 0.242
Travel time at Voyager 1 speed 47,077,126 years

Kepler-1885 b Planet Profile

Physical Specs

Radius

1.51 R⊕

Radius (Jupiter)

0.135 R♃

Mass

2.89 M⊕

Mass (Jupiter)

0.009 M♃

Density

4.60 g/cm³

Surface Gravity

1.27 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.242

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

#728of 1176

top 61.8%

This planet

1.51R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

HD 219134 c 1.51 R⊕ Kepler-249 c 1.51 R⊕ Kepler-389 b 1.51 R⊕

Metric	Earth	Kepler-1885 b	Jupiter
Radius (R⊕)	1.00	1.51	11.21
Mass (M⊕)	1.00	2.89	317.83
Density (g/cm³)	5.51	4.60	1.33
Surface Gravity (g)	1.00	1.27	2.53
Insolation (S⊕)	1.00	499.07	0.037

Star Catalogue Identifiers

TIC

TIC 158839043

Gaia DR2

Gaia DR2 2130910988412248192

Gaia DR3

Gaia DR3 2130910988412248192

System

Kepler-1885

Percentile among Super-Earth cohort

Radius 1.511 R⊕ · percentile 38 / cohort 1176

Mass 2.890 M⊕ · percentile 34 / cohort 1176

Orbital period 2.52 d · percentile 17 / cohort 1164

Distance 818.48 pc · percentile 69 / cohort 1171

ESI 0.242 · percentile 21 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

2.523 days

Semi-major axis

0.0360 AU

Eccentricity

0.000

Inclination

63.80 °

Year Length

A year here lasts approximately 2.52 Earth days (0.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0360 AU.

Transit Fingerprint

Depth

0.021 %

Duration

1.406 h

Impact parameter b

1.233

Rp / R★

0.030000

Transit midpoint (BJD)

2,454,964.6453

Photometric dip

Transit produces a flux drop of 210 ppm lasting ≈ 1.41 h.

Extended Orbital Architecture

Planet / star radius ratio

0.030000

Semi-major axis / stellar radius

2.850

Impact parameter (b)

1.233

Transit mid-time (BJD)

2,454,964.6453

Angular separation (arcsec)

0.04400

Eq. Temperature

1,205K

(932 °C)

Insolation (S⊕)

499.07

Earth = 1.00

Earth Similarity (ESI)

0.242

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-1885

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,591 K — cooler than the Sun (5,778 K)

Estimated Age

0.90 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.860 R☉

Stellar Mass

0.977 M☉

Metallicity [Fe/H]

0.07

Extended Stellar Properties

Surface gravity (log g)

4.559 dex

Stellar density

0.069 g/cm³

Metallicity ratio

[Fe/H]

Distance

818.48 parsec

Light-years 2,669.53 ly

V-band magnitude

14.85 mag

Voyager-speed travel 47,077,126 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.193 mas

Total Proper Motion

5.799 mas/yr

PM Right Ascension

-3.32 mas/yr

PM Declination

-4.75 mas/yr

Galactic Cartesian (pc)

x = 0.217 · y = -0.640 · z = 0.737

Equatorial (J2000)

RA 288.75071° · Dec 47.49092°

Galactic ℓ, b

78.587° · 15.927°

Ecliptic λ, β

306.470° · 68.569°

HTM-20 index

1622062337