Key parameters at a glance

A radius of 13.00 Earth radii
A mass of 1,334.89 Earth masses
Surface gravity around 7.90 g
An orbital period of 578.200 days
Semi-major axis 1.3000 AU
Distance from Earth 4,313.45 light-years
Earth Similarity Index 0.419
Travel time at Voyager 1 speed 76,067,611 years

Context from the literature

This is a List of exoplanets discovered in 2012. For exoplanets detected only by radial velocity, the mass value is actually a lower limit.

Excerpted from Wikipedia · full article

BD+20 274 b Planet Profile

Physical Specs

Radius

13.00 R⊕

Radius (Jupiter)

1.160 R♃

Mass

1,334.89 M⊕

Mass (Jupiter)

4.200 M♃

Density

3.34 g/cm³

Surface Gravity

7.90 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.419

HZ Position Unknown

Controversial No

Discovery

Year 2012

Method Radial Velocity

Facility McDonald Observatory

Telescope 9.2 m Hobby-Eberly Telescope

Size rank in cohort

Rank by radius

#960of 1771

top 54.2%

This planet

13.00R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HIP 14810 b 13.00 R⊕ HD 47186 c 13.00 R⊕ WASP-107 c 13.00 R⊕

Metric	Earth	BD+20 274 b	Jupiter
Radius (R⊕)	1.00	13.00	11.21
Mass (M⊕)	1.00	1,334.89	317.83
Density (g/cm³)	5.51	3.34	1.33
Surface Gravity (g)	1.00	7.90	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	1,334.886 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 60923874

Gaia DR2

Gaia DR2 96530596864007552

Gaia DR3

Gaia DR3 96530596864007552

System

BD+20 274

Percentile among Gas Giant cohort

Radius 13.000 R⊕ · percentile 43 / cohort 1771

Mass 1,334.886 M⊕ · percentile 72 / cohort 1747

Orbital period 578.20 d · percentile 70 / cohort 1533

Distance 1,322.51 pc · percentile 89 / cohort 1759

ESI 0.419 · percentile 91 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

578.200 days

Semi-major axis

1.3000 AU

Eccentricity

0.210

Inclination

— °

Year Length

A year here lasts about 1.58 Earth years on a mildly elliptical path at a mean orbital distance of 1.3000 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.419

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Gettel et al. 2012

Instrument

High Resolution Spectrograph

Publication

2012-09

Observation locale

Ground

Discovery cohort

Planets confirmed in 2012 at McDonald Observatory (2 shown).

HD 219415 b · Gas Giant HD 197037 b · Gas Giant

Host System: BD+20 274

Spectral Class

K-type orange

Effective Temperature

4,296 K — cooler than the Sun (5,778 K)

Estimated Age

—

Stellar Radius

17.300 R☉

Stellar Mass

0.800 M☉

Metallicity [Fe/H]

-0.46

Extended Stellar Properties

Surface gravity (log g)

1.990 dex

Systemic radial velocity

8.39 km/s

Rotational v·sin i

2.00 km/s

Metallicity ratio

[Fe/H]

Distance

1,322.51 parsec

Light-years 4,313.45 ly

V-band magnitude

9.37 mag

Voyager-speed travel 76,067,611 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

0.723 mas

Total Proper Motion

3.788 mas/yr

PM Right Ascension

0.19 mas/yr

PM Declination

-3.78 mas/yr

Galactic Cartesian (pc)

x = 0.840 · y = 0.408 · z = 0.358

Equatorial (J2000)

RA 25.92032° · Dec 21.00527°

Galactic ℓ, b

138.974° · -40.233°

Ecliptic λ, β

31.618° · 9.587°

HTM-20 index

-1875778437

Wikipedia →

Similar Worlds

WASP-107 c

Gas Giant · K-type orange

Radius 13.00 R⊕ · 211.2 ly

HD 1605 c

Gas Giant · K-type orange

Radius 13.00 R⊕ · 289.6 ly

HD 86950 b

Gas Giant · K-type orange

Radius 13.00 R⊕ · 684.4 ly

HD 174205 b

Gas Giant · K-type orange

Radius 13.00 R⊕ · 763.3 ly

CI Tau c

Gas Giant · K-type orange

Radius 13.00 R⊕ · 515.3 ly

HD 95872 b

Gas Giant · K-type orange

Radius 13.00 R⊕ · 235.5 ly

Explore Related Categories

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