Key parameters at a glance

A radius of 14.00 Earth radii
A mass of 228.84 Earth masses
Surface gravity around 1.17 g
An orbital period of 265.590 days
Semi-major axis 0.7800 AU
Distance from Earth 171.46 light-years
Earth Similarity Index 0.282
Travel time at Voyager 1 speed 3,023,683 years

BD+55 362 b Planet Profile

Physical Specs

Radius

14.00 R⊕

Radius (Jupiter)

1.250 R♃

Mass

228.84 M⊕

Mass (Jupiter)

0.720 M♃

Density

0.46 g/cm³

Surface Gravity

1.17 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.282

HZ Position Unknown

Controversial No

Discovery

Year 2021

Method Radial Velocity

Facility Haute-Provence Observatory

Telescope 1.93 m Telescope

Size rank in cohort

Rank by radius

#415of 1771

top 23.4%

This planet

14.00R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 9446 b 14.00 R⊕ HD 156411 b 14.00 R⊕ HD 224693 b 14.00 R⊕

Metric	Earth	BD+55 362 b	Jupiter
Radius (R⊕)	1.00	14.00	11.21
Mass (M⊕)	1.00	228.84	317.83
Density (g/cm³)	5.51	0.46	1.33
Surface Gravity (g)	1.00	1.17	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	228.836 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 453226076

Gaia DR2

Gaia DR2 412783469966211456

Gaia DR3

Gaia DR3 412783469966211456

System

BD+55 362

Percentile among Gas Giant cohort

Radius 14.000 R⊕ · percentile 74 / cohort 1771

Mass 228.836 M⊕ · percentile 24 / cohort 1747

Orbital period 265.59 d · percentile 59 / cohort 1533

Distance 52.57 pc · percentile 21 / cohort 1759

ESI 0.282 · percentile 53 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

265.590 days

Semi-major axis

0.7800 AU

Eccentricity

0.270

Inclination

0.60 °

Year Length

A year here lasts approximately 265.59 Earth days (72.7% of a terrestrial year) on a mildly elliptical path at a mean orbital distance of 0.7800 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.282

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Dalal et al. 2021

Instrument

SOPHIE Spectrograph

Publication

2021-07

Observation locale

Ground

Discovery cohort

Planets confirmed in 2021 at Haute-Provence Observatory (11 shown).

HD 27969 b · Gas Giant HD 109286 b · Gas Giant HD 211403 b · Gas Giant HD 80869 b · Gas Giant BD+63 1405 b · Gas Giant HD 331093 b · Gas Giant BD+45 564 b · Gas Giant HD 95544 b · Gas Giant HD 115954 b · Gas Giant HD 124330 b · Gas Giant HD 155193 b · Gas Giant

Host System: BD+55 362

Spectral Class

K-type orange

Effective Temperature

5,012 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

0.896 R☉

Stellar Mass

0.909 M☉

Metallicity [Fe/H]

0.18

Extended Stellar Properties

Surface gravity (log g)

4.090 dex

Stellar density

1.665 g/cm³

Systemic radial velocity

-25.65 km/s

Rotational v·sin i

2.00 km/s

Metallicity ratio

[Fe/H]

Distance

52.57 parsec

Light-years 171.46 ly

V-band magnitude

9.38 mag

Voyager-speed travel 3,023,683 yr

Multi-band Host Photometry — 7 bands

Astrometric Data

Parallax

18.994 mas

Total Proper Motion

341.358 mas/yr

PM Right Ascension

264.14 mas/yr

PM Declination

-216.23 mas/yr

Galactic Cartesian (pc)

x = 0.502 · y = 0.223 · z = 0.836

Equatorial (J2000)

RA 23.96367° · Dec 56.69823°

Galactic ℓ, b

129.032° · -5.647°

Ecliptic λ, β

46.944° · 42.697°

HTM-20 index

-1938695185

Similar Worlds

HIP 18606 b

Gas Giant · K-type orange

Radius 14.00 R⊕ · 153.4 ly

HIP 86221 b

Gas Giant · K-type orange

Radius 14.00 R⊕ · 96.2 ly

BD-210397 b

Gas Giant · K-type orange

Radius 14.00 R⊕ · 77.4 ly

Qatar-2 b

Gas Giant · K-type orange

Radius 14.06 R⊕ · 591.6 ly

HD 2952 b

Gas Giant · K-type orange

Radius 13.90 R⊕ · 359.1 ly

HIP 111909 c

Gas Giant · K-type orange

Radius 13.90 R⊕ · 287.3 ly

Explore Related Categories

Gas Giant Planets Radial Velocity Discoveries Haute-Provence Observatory Mission K-type orange Hosts