Key parameters at a glance

A radius of 3.25 Earth radii
A mass of 10.60 Earth masses
Surface gravity around 1.00 g
An orbital period of 103.427 days
Semi-major axis 0.4438 AU
Equilibrium temperature 416 K (143 °C)
Distance from Earth 4,493.16 light-years
Earth Similarity Index 0.523
Travel time at Voyager 1 speed 79,236,831 years

Kepler-1883 b Planet Profile

Physical Specs

Radius

3.25 R⊕

Radius (Jupiter)

0.290 R♃

Mass

10.60 M⊕

Mass (Jupiter)

0.033 M♃

Density

1.70 g/cm³

Surface Gravity

1.00 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.523

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

#311of 1978

top 15.7%

This planet

3.25R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-199 c 3.25 R⊕ GJ 163 b 3.25 R⊕ HD 20781 d 3.25 R⊕

Metric	Earth	Kepler-1883 b	Jupiter
Radius (R⊕)	1.00	3.25	11.21
Mass (M⊕)	1.00	10.60	317.83
Density (g/cm³)	5.51	1.70	1.33
Surface Gravity (g)	1.00	1.00	2.53
Insolation (S⊕)	1.00	7.08	0.037

Star Catalogue Identifiers

TIC

TIC 63121790

Gaia DR2

Gaia DR2 2101700297360624128

Gaia DR3

Gaia DR3 2101700297360624128

System

Kepler-1883

Percentile among Sub-Neptune cohort

Radius 3.251 R⊕ · percentile 84 / cohort 1978

Mass 10.600 M⊕ · percentile 77 / cohort 1978

Orbital period 103.43 d · percentile 94 / cohort 1946

Distance 1,377.61 pc · percentile 91 / cohort 1975

ESI 0.523 · percentile 73 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

103.427 days

Semi-major axis

0.4438 AU

Eccentricity

0.000

Inclination

90.00 °

Year Length

A year here lasts approximately 103.43 Earth days (28.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.4438 AU.

Transit Fingerprint

Depth

0.095 %

Duration

5.030 h

Impact parameter b

0.030

Rp / R★

0.028295

Transit midpoint (BJD)

2,455,053.2287

Photometric dip

Transit produces a flux drop of 950 ppm lasting ≈ 5.03 h.

Extended Orbital Architecture

Planet / star radius ratio

0.028295

Semi-major axis / stellar radius

161.500

Impact parameter (b)

0.030

Transit mid-time (BJD)

2,455,053.2287

Angular separation (arcsec)

0.32200

Eq. Temperature

416K

(143 °C)

Insolation (S⊕)

7.08

Earth = 1.00

Earth Similarity (ESI)

0.523

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

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-1883

Spectral Class

F-type yellow-white

Effective Temperature

6,208 K — hotter than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

1.024 R☉

Stellar Mass

1.086 M☉

Metallicity [Fe/H]

-0.12

Extended Stellar Properties

Surface gravity (log g)

4.454 dex

Stellar density

7.450 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,377.61 parsec

Light-years 4,493.16 ly

V-band magnitude

15.64 mag

Voyager-speed travel 79,236,831 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.698 mas

Total Proper Motion

4.052 mas/yr

PM Right Ascension

-1.41 mas/yr

PM Declination

-3.80 mas/yr

Galactic Cartesian (pc)

x = 0.277 · y = -0.689 · z = 0.669

Equatorial (J2000)

RA 291.92256° · Dec 42.00252°

Galactic ℓ, b

74.418° · 11.592°

Ecliptic λ, β

307.136° · 62.644°

HTM-20 index

-327386834