Key parameters at a glance

A radius of 13.80 Earth radii
A mass of 337.22 Earth masses
Surface gravity around 1.77 g
An orbital period of 153.220 days
Semi-major axis 0.5760 AU
Distance from Earth 2,505.02 light-years
Earth Similarity Index 0.312
Travel time at Voyager 1 speed 44,176,111 years

BD+15 2375 b Planet Profile

Physical Specs

Radius

13.80 R⊕

Radius (Jupiter)

1.230 R♃

Mass

337.22 M⊕

Mass (Jupiter)

1.061 M♃

Density

0.71 g/cm³

Surface Gravity

1.77 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.312

HZ Position Unknown

Controversial No

Discovery

Year 2016

Method Radial Velocity

Facility Roque de los Muchachos Observatory

Telescope 3.58 m Telescopio Nazionale Galileo

Size rank in cohort

Rank by radius

#510of 1771

top 28.7%

This planet

13.80R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

GJ 179 b 13.80 R⊕ GJ 832 b 13.80 R⊕ HD 219415 b 13.80 R⊕

Metric	Earth	BD+15 2375 b	Jupiter
Radius (R⊕)	1.00	13.80	11.21
Mass (M⊕)	1.00	337.22	317.83
Density (g/cm³)	5.51	0.71	1.33
Surface Gravity (g)	1.00	1.77	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	337.218 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 82604982

Gaia DR2

Gaia DR2 3924009634910406912

Gaia DR3

Gaia DR3 3924009634910406912

System

BD+15 2375

Percentile among Gas Giant cohort

Radius 13.800 R⊕ · percentile 70 / cohort 1771

Mass 337.218 M⊕ · percentile 37 / cohort 1747

Orbital period 153.22 d · percentile 56 / cohort 1533

Distance 768.05 pc · percentile 83 / cohort 1759

ESI 0.312 · percentile 61 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

153.220 days

Semi-major axis

0.5760 AU

Eccentricity

0.001

Inclination

— °

Year Length

A year here lasts approximately 153.22 Earth days (41.9% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.5760 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.312

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Niedzielski et al. 2016

Instrument

HARPS-N Spectrograph

Publication

2016-04

Observation locale

Ground

Discovery cohort

Planets confirmed in 2016 at Roque de los Muchachos Observatory (4 shown).

GJ 3998 b · Super-Earth GJ 3998 c · Sub-Neptune HD 5583 b · Gas Giant Pr0211 c · Gas Giant

Host System: BD+15 2375

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

4,649 K — cooler than the Sun (5,778 K)

Estimated Age

7.41 Gyr — older than the Sun (4.6 Gyr)

Stellar Radius

8.950 R☉

Stellar Mass

1.080 M☉

Metallicity [Fe/H]

-0.22

Extended Stellar Properties

Surface gravity (log g)

2.610 dex

Systemic radial velocity

-9.65 km/s

Rotational v·sin i

2.50 km/s

Metallicity ratio

[Fe/H]

Distance

768.05 parsec

Light-years 2,505.02 ly

V-band magnitude

10.41 mag

Voyager-speed travel 44,176,111 yr

Multi-band Host Photometry — 16 bands

Astrometric Data

Parallax

1.273 mas

Total Proper Motion

30.774 mas/yr

PM Right Ascension

-28.47 mas/yr

PM Declination

-11.68 mas/yr

Galactic Cartesian (pc)

x = -0.966 · y = 0.059 · z = 0.252

Equatorial (J2000)

RA 176.48202° · Dec 14.61632°

Galactic ℓ, b

249.002° · 70.272°

Ecliptic λ, β

170.887° · 12.000°

HTM-20 index

-270994707