Key parameters at a glance

A radius of 13.30 Earth radii
A mass of 116.00 Earth masses
Surface gravity around 0.66 g
An orbital period of 5.888 days
Semi-major axis 0.0700 AU
Distance from Earth 183.98 light-years
Earth Similarity Index 0.252
Travel time at Voyager 1 speed 3,244,505 years

HD 103774 b Planet Profile

Physical Specs

Radius

13.30 R⊕

Radius (Jupiter)

1.190 R♃

Mass

116.00 M⊕

Mass (Jupiter)

0.367 M♃

Density

0.27 g/cm³

Surface Gravity

0.66 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.252

HZ Position Unknown

Controversial No

Discovery

Year 2013

Method Radial Velocity

Facility La Silla Observatory

Telescope 3.6 m ESO Telescope

Size rank in cohort

Rank by radius

#793of 1771

top 44.7%

This planet

13.30R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

HD 12661 b 13.30 R⊕ HD 129445 b 13.30 R⊕ GJ 876 b 13.30 R⊕

Metric	Earth	HD 103774 b	Jupiter
Radius (R⊕)	1.00	13.30	11.21
Mass (M⊕)	1.00	116.00	317.83
Density (g/cm³)	5.51	0.27	1.33
Surface Gravity (g)	1.00	0.66	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	116.000 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

HD 103774

HIP

HIP 58263

TIC

TIC 180205814

Gaia DR2

Gaia DR2 3574907305749250432

Gaia DR3

Gaia DR3 3574907305749250432

System

HD 103774

Percentile among Gas Giant cohort

Radius 13.300 R⊕ · percentile 53 / cohort 1771

Mass 116.000 M⊕ · percentile 7 / cohort 1747

Orbital period 5.89 d · percentile 40 / cohort 1533

Distance 56.41 pc · percentile 23 / cohort 1759

ESI 0.252 · percentile 45 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

5.888 days

Semi-major axis

0.0700 AU

Eccentricity

0.090

Inclination

— °

Year Length

A year here lasts approximately 5.89 Earth days (1.6% of a terrestrial year) on a nearly circular orbit at a mean orbital distance of 0.0700 AU.

Eq. Temperature

—

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.252

0 = alien, 1 = Earth-identical

Discovery Paper

Primary reference

Lo Curto et al. 2013

Instrument

HARPS Spectrograph

Publication

2013-03

Observation locale

Ground

Discovery cohort

Planets confirmed in 2013 at La Silla Observatory (10 shown).

GJ 667 C c · Super-Earth GJ 163 c · Sub-Neptune HD 40307 f · Sub-Neptune GJ 163 b · Sub-Neptune HD 109271 b · Neptune-like HD 109271 c · Neptune-like POTS-1 b · Gas Giant GJ 163 d · Neptune-like HD 65216 c · Gas Giant BD-06 1339 c · Neptune-like

Host System: HD 103774

Spectral Class

F-type yellow-white

Effective Temperature

6,489 K — hotter than the Sun (5,778 K)

Estimated Age

1.05 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

1.581 R☉

Stellar Mass

1.335 M☉

Metallicity [Fe/H]

0.28

Extended Stellar Properties

Surface gravity (log g)

4.260 dex

Stellar density

0.614 g/cm³

Systemic radial velocity

-3.05 km/s

Rotational v·sin i

8.10 km/s

Metallicity ratio

[Fe/H]

Distance

56.41 parsec

Light-years 183.98 ly

V-band magnitude

7.13 mag

Voyager-speed travel 3,244,505 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

17.699 mas

Total Proper Motion

126.504 mas/yr

PM Right Ascension

-124.89 mas/yr

PM Declination

-20.16 mas/yr

Galactic Cartesian (pc)

x = -0.978 · y = 0.013 · z = -0.210

Equatorial (J2000)

RA 179.23107° · Dec -12.10800°

Galactic ℓ, b

282.547° · 48.594°

Ecliptic λ, β

184.173° · -11.400°

HTM-20 index

1009640895