Key parameters at a glance

A radius of 14.20 Earth radii
A mass of 177.98 Earth masses
Surface gravity around 0.88 g
An orbital period of 160.070 days
Semi-major axis 0.5860 AU
Distance from Earth 192.20 light-years
Earth Similarity Index 0.261
Travel time at Voyager 1 speed 3,389,461 years

1 sibling around HD 207832

HD 207832 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
HD 207832 b this	Gas Giant	14.20	177.98	160.070	—	2012
HD 207832 c	Gas Giant	14.00	232.02	1,155.700	—	2012

HD 207832 b Planet Profile

Physical Specs

Radius

14.20 R⊕

Radius (Jupiter)

1.260 R♃

Mass

177.98 M⊕

Mass (Jupiter)

0.560 M♃

Density

0.34 g/cm³

Surface Gravity

0.88 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.261

HZ Position Unknown

Controversial No

Discovery

Year 2012

Method Radial Velocity

Facility W. M. Keck Observatory

Telescope 10 m Keck I Telescope

Size rank in cohort

Rank by radius

#334of 1771

top 18.8%

This planet

14.20R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

OGLE-2011-BLG-0251L b 14.20 R⊕ HIP 57274 c 14.20 R⊕ HD 187123 b 14.20 R⊕

Metric	Earth	HD 207832 b	Jupiter
Radius (R⊕)	1.00	14.20	11.21
Mass (M⊕)	1.00	177.98	317.83
Density (g/cm³)	5.51	0.34	1.33
Surface Gravity (g)	1.00	0.88	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	177.985 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 207832

HIP

HIP 107985

TIC

TIC 53895723

Gaia DR2

Gaia DR2 6812056381881853056

Gaia DR3

Gaia DR3 6812056381881853056

System

HD 207832

Percentile among Gas Giant cohort

Radius 14.200 R⊕ · percentile 79 / cohort 1771

Mass 177.985 M⊕ · percentile 16 / cohort 1747

Orbital period 160.07 d · percentile 56 / cohort 1533

Distance 58.93 pc · percentile 24 / cohort 1759

ESI 0.261 · percentile 48 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

160.070 days

Semi-major axis

0.5860 AU

Eccentricity

0.197

Inclination

— °

Year Length

A year here lasts approximately 160.07 Earth days (43.8% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.5860 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.261

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Haghighipour et al. 2012

Instrument

HIRES Spectrometer

Publication

2012-09

Observation locale

Ground

Discovery cohort

Planets confirmed in 2012 at W. M. Keck Observatory (2 shown).

HD 207832 c · Gas Giant WISEP J121756.91+162640.2 A b · Gas Giant

Host System: HD 207832

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,726 K — cooler than the Sun (5,778 K)

Estimated Age

1.36 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.890 R☉

Stellar Mass

1.050 M☉

Metallicity [Fe/H]

0.14

Extended Stellar Properties

Surface gravity (log g)

4.480 dex

Stellar density

1.525 g/cm³

Systemic radial velocity

-16.48 km/s

Rotational v·sin i

3.00 km/s

Metallicity ratio

[Fe/H]

Distance

58.93 parsec

Light-years 192.20 ly

V-band magnitude

8.78 mag

Voyager-speed travel 3,389,461 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

16.941 mas

Total Proper Motion

192.650 mas/yr

PM Right Ascension

129.09 mas/yr

PM Declination

-143.00 mas/yr

Galactic Cartesian (pc)

x = 0.763 · y = -0.474 · z = -0.439

Equatorial (J2000)

RA 328.15179° · Dec -26.02717°

Galactic ℓ, b

24.003° · -50.216°

Ecliptic λ, β

321.385° · -12.356°

HTM-20 index

1804539890

Observation Record

Photometric series

RV measurements

Stellar spectra

Archive notes