Key parameters at a glance

A radius of 2.56 Earth radii
A mass of 7.08 Earth masses
Surface gravity around 1.08 g
An orbital period of 11.904 days
Semi-major axis 0.1050 AU
Equilibrium temperature 827 K (554 °C)
Distance from Earth 4,280.28 light-years
Earth Similarity Index 0.303
Travel time at Voyager 1 speed 75,482,657 years

1 sibling around Kepler-175

Kepler-175 b shares its host star with 1 other confirmed planet. Side-by-side measurements below.

Planet	Type	Radius (R⊕)	Mass (M⊕)	Period (d)	Eq. T (K)	Year
Kepler-175 b this	Sub-Neptune	2.56	7.08	11.904	827	2014
Kepler-175 c	Sub-Neptune	3.10	9.80	34.035	583	2014

Kepler-175 b Planet Profile

Physical Specs

Radius

2.56 R⊕

Radius (Jupiter)

0.228 R♃

Mass

7.08 M⊕

Mass (Jupiter)

0.022 M♃

Density

2.32 g/cm³

Surface Gravity

1.08 g (Earth)

Classification

Planet Type

Sub-Neptune

ESI Score 0.303

HZ Position Inner

Controversial No

Discovery

Year 2014

Method Transit

Facility Kepler

Telescope 0.95 m Kepler Telescope

Size rank in cohort

Rank by radius

#1092of 1978

top 55.2%

This planet

2.56R⊕

Sub-Neptune median

2.71R⊕

Nearest-size peers

Kepler-171 c 2.56 R⊕ Kepler-106 e 2.56 R⊕ Kepler-640 b 2.56 R⊕

Metric	Earth	Kepler-175 b	Jupiter
Radius (R⊕)	1.00	2.56	11.21
Mass (M⊕)	1.00	7.08	317.83
Density (g/cm³)	5.51	2.32	1.33
Surface Gravity (g)	1.00	1.08	2.53
Insolation (S⊕)	1.00	129.64	0.037

Star Catalogue Identifiers

TIC

TIC 159099116

Gaia DR2

Gaia DR2 2102880210775046528

Gaia DR3

Gaia DR3 2102880210775046528

System

Kepler-175

Percentile among Sub-Neptune cohort

Radius 2.560 R⊕ · percentile 44 / cohort 1978

Mass 7.080 M⊕ · percentile 41 / cohort 1978

Orbital period 11.90 d · percentile 41 / cohort 1946

Distance 1,312.34 pc · percentile 89 / cohort 1975

ESI 0.303 · percentile 28 / cohort 1978

Orbit & Habitability

Orbital Dynamics

Period

11.904 days

Semi-major axis

0.1050 AU

Eccentricity

0.000

Inclination

88.78 °

Year Length

A year here lasts approximately 11.90 Earth days (3.3% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.1050 AU.

Transit Fingerprint

Depth

0.063 %

Duration

4.215 h

Impact parameter b

0.090

Rp / R★

0.023415

Transit midpoint (BJD)

2,455,011.3408

Photometric dip

Transit produces a flux drop of 633 ppm lasting ≈ 4.22 h.

Extended Orbital Architecture

Planet / star radius ratio

0.023415

Semi-major axis / stellar radius

17.800

Impact parameter (b)

0.090

Transit mid-time (BJD)

2,455,011.3408

Angular separation (arcsec)

0.08000

Eq. Temperature

827K

(554 °C)

Insolation (S⊕)

129.64

Earth = 1.00

Earth Similarity (ESI)

0.303

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

Rowe et al. 2014

Instrument

Kepler CCD Array

Publication

2014-03

Observation locale

Space

Discovery cohort

Planets confirmed in 2014 at Kepler (12 shown).

Kepler-186 e · Super-Earth Kepler-395 c · Super-Earth Kepler-220 e · Super-Earth Kepler-249 d · Super-Earth Kepler-296 f · Super-Earth Kepler-367 c · Rocky Terrestrial Kepler-296 e · Super-Earth Kepler-155 c · Sub-Neptune Kepler-138 d · Super-Earth Kepler-333 c · Rocky Terrestrial Kepler-331 d · Super-Earth Kepler-267 d · Sub-Neptune

Host System: Kepler-175

Spectral Class

F-type yellow-white

Effective Temperature

6,064 K — hotter than the Sun (5,778 K)

Estimated Age

3.39 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.010 R☉

Stellar Mass

0.969 M☉

Metallicity [Fe/H]

0.04

Extended Stellar Properties

Surface gravity (log g)

4.472 dex

Stellar density

0.620 g/cm³

Metallicity ratio

[Fe/H]

Distance

1,312.34 parsec

Light-years 4,280.28 ly

V-band magnitude

15.23 mag

Voyager-speed travel 75,482,657 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.733 mas

Total Proper Motion

15.320 mas/yr

PM Right Ascension

-6.30 mas/yr

PM Declination

-13.96 mas/yr

Galactic Cartesian (pc)

x = 0.241 · y = -0.679 · z = 0.693

Equatorial (J2000)

RA 289.55323° · Dec 43.87612°

Galactic ℓ, b

75.394° · 13.961°

Ecliptic λ, β

304.765° · 64.973°

HTM-20 index

876646827