Key parameters at a glance

A radius of 0.80 Earth radii
A mass of 0.44 Earth masses
Surface gravity around 0.68 g
An orbital period of 6.147 days
Semi-major axis 0.0611 AU
Equilibrium temperature 770 K (497 °C)
Distance from Earth 649.05 light-years
Earth Similarity Index 0.400
Travel time at Voyager 1 speed 11,446,004 years
Almost certainly tidally locked to its host star given the close orbit

Kepler-1076 b Planet Profile

Physical Specs

Radius

0.80 R⊕

Radius (Jupiter)

0.071 R♃

Mass

0.44 M⊕

Mass (Jupiter)

0.001 M♃

Density

4.69 g/cm³

Surface Gravity

0.68 g (Earth)

Classification

Planet Type

Rocky Terrestrial

ESI Score 0.400

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

#479of 570

top 83.9%

This planet

0.80R⊕

Rocky Terrestrial median

1.01R⊕

Nearest-size peers

Kepler-1365 c 0.80 R⊕ Kepler-1130 b 0.80 R⊕ Kepler-1581 b 0.80 R⊕

Metric	Earth	Kepler-1076 b	Jupiter
Radius (R⊕)	1.00	0.80	11.21
Mass (M⊕)	1.00	0.44	317.83
Density (g/cm³)	5.51	4.69	1.33
Surface Gravity (g)	1.00	0.68	2.53
Insolation (S⊕)	1.00	83.18	0.037

Star Catalogue Identifiers

TIC

TIC 399955825

Gaia DR2

Gaia DR2 2133011635437118464

System

Kepler-1076

Percentile among Rocky Terrestrial cohort

Radius 0.800 R⊕ · percentile 15 / cohort 570

Mass 0.437 M⊕ · percentile 13 / cohort 570

Orbital period 6.15 d · percentile 62 / cohort 567

Distance 199.00 pc · percentile 32 / cohort 566

ESI 0.400 · percentile 60 / cohort 570

Orbit & Habitability

Orbital Dynamics

Period

6.147 days

Semi-major axis

0.0611 AU

Eccentricity

0.000

Inclination

89.36 °

Year Length

A year here lasts approximately 6.15 Earth days (1.7% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0611 AU.

Transit Fingerprint

Depth

0.012 %

Duration

2.763 h

Impact parameter b

0.500

Rp / R★

0.010000

Transit midpoint (BJD)

2,454,967.8741

Photometric dip

Transit produces a flux drop of 120 ppm lasting ≈ 2.76 h.

Extended Orbital Architecture

Planet / star radius ratio

0.010000

Semi-major axis / stellar radius

16.860

Impact parameter (b)

0.500

Transit mid-time (BJD)

2,454,967.8741

Angular separation (arcsec)

0.30700

Eq. Temperature

770K

(497 °C)

Insolation (S⊕)

83.18

Earth = 1.00

Earth Similarity (ESI)

0.400

0 = alien, 1 = Earth-identical

Inside the inner HZ boundary (too hot for liquid water) — the surface is too hot to retain surface water. Close-orbiting tidally-locked around a cool host.

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-1076

Spectral Class

K-type orange

Effective Temperature

4,868 K — cooler than the Sun (5,778 K)

Estimated Age

3.72 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.740 R☉

Stellar Mass

0.790 M☉

Metallicity [Fe/H]

-0.01

Extended Stellar Properties

Surface gravity (log g)

4.600 dex

Stellar density

2.401 g/cm³

Systemic radial velocity

-33.64 km/s

Metallicity ratio

[Fe/H]

Distance

199.00 parsec

Light-years 649.05 ly

V-band magnitude

13.18 mag

Voyager-speed travel 11,446,004 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Total Proper Motion

8.744 mas/yr

PM Right Ascension

6.42 mas/yr

PM Declination

5.93 mas/yr

Galactic Cartesian (pc)

x = 0.190 · y = -0.599 · z = 0.778

Equatorial (J2000)

RA 287.59026° · Dec 51.06060°

Galactic ℓ, b

81.748° · 17.971°

Ecliptic λ, β

308.322° · 72.165°

HTM-20 index

952102064