Key parameters at a glance

A radius of 1.42 Earth radii
A mass of 2.60 Earth masses
Surface gravity around 1.29 g
An orbital period of 6.982 days
Semi-major axis 0.0816 AU
Equilibrium temperature 1,384 K (1111 °C)
Distance from Earth 2,004.71 light-years
Earth Similarity Index 0.211
Travel time at Voyager 1 speed 35,353,082 years

Kepler-1274 b Planet Profile

Physical Specs

Radius

1.42 R⊕

Radius (Jupiter)

0.127 R♃

Mass

2.60 M⊕

Mass (Jupiter)

0.008 M♃

Density

4.99 g/cm³

Surface Gravity

1.29 g (Earth)

Classification

Planet Type

Super-Earth

ESI Score 0.211

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

#884of 1176

top 75.1%

This planet

1.42R⊕

Super-Earth median

1.60R⊕

Nearest-size peers

Kepler-763 c 1.42 R⊕ Kepler-1290 b 1.42 R⊕ TOI-286 b 1.42 R⊕

Metric	Earth	Kepler-1274 b	Jupiter
Radius (R⊕)	1.00	1.42	11.21
Mass (M⊕)	1.00	2.60	317.83
Density (g/cm³)	5.51	4.99	1.33
Surface Gravity (g)	1.00	1.29	2.53
Insolation (S⊕)	1.00	975.81	0.037

Star Catalogue Identifiers

TIC

TIC 164781116

Gaia DR2

Gaia DR2 2107342716152550272

Gaia DR3

Gaia DR3 2107342716152550272

System

Kepler-1274

Percentile among Super-Earth cohort

Radius 1.420 R⊕ · percentile 24 / cohort 1176

Mass 2.600 M⊕ · percentile 23 / cohort 1176

Orbital period 6.98 d · percentile 52 / cohort 1164

Distance 614.65 pc · percentile 55 / cohort 1171

ESI 0.211 · percentile 15 / cohort 1176

Orbit & Habitability

Orbital Dynamics

Period

6.982 days

Semi-major axis

0.0816 AU

Eccentricity

0.000

Inclination

83.27 °

Year Length

A year here lasts approximately 6.98 Earth days (1.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0816 AU.

Transit Fingerprint

Depth

0.004 %

Duration

5.896 h

Impact parameter b

0.717

Rp / R★

0.005612

Transit midpoint (BJD)

2,454,965.7697

Photometric dip

Transit produces a flux drop of 37 ppm lasting ≈ 5.90 h.

Extended Orbital Architecture

Planet / star radius ratio

0.005612

Semi-major axis / stellar radius

8.981

Impact parameter (b)

0.717

Transit mid-time (BJD)

2,454,965.7697

Angular separation (arcsec)

0.13300

Eq. Temperature

1,384K

(1111 °C)

Insolation (S⊕)

975.81

Earth = 1.00

Earth Similarity (ESI)

0.211

0 = alien, 1 = Earth-identical

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

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-1274

Spectral Class

F-type yellow-white

Effective Temperature

6,179 K — hotter than the Sun (5,778 K)

Estimated Age

2.88 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.170 R☉

Stellar Mass

1.450 M☉

Metallicity [Fe/H]

0.11

Extended Stellar Properties

Surface gravity (log g)

3.930 dex

Stellar density

0.150 g/cm³

Systemic radial velocity

-8.57 km/s

Metallicity ratio

[Fe/H]

Distance

614.65 parsec

Light-years 2,004.71 ly

V-band magnitude

11.72 mag

Voyager-speed travel 35,353,082 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.599 mas

Total Proper Motion

8.102 mas/yr

PM Right Ascension

-2.63 mas/yr

PM Declination

-7.66 mas/yr

Galactic Cartesian (pc)

x = 0.174 · y = -0.667 · z = 0.725

Equatorial (J2000)

RA 284.59369° · Dec 46.44974°

Galactic ℓ, b

76.476° · 18.175°

Ecliptic λ, β

298.220° · 68.464°

HTM-20 index

-1566973629