Key parameters at a glance

A radius of 13.10 Earth radii
A mass of 1,010.70 Earth masses
Surface gravity around 5.89 g
An orbital period of 421.000 days
Semi-major axis 1.0700 AU
Equilibrium temperature 241 K (-32 °C)
Distance from Earth 532.84 light-years
Earth Similarity Index 0.443
Travel time at Voyager 1 speed 9,396,709 years

1 sibling around WASP-41

WASP-41 c 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
WASP-41 b	Gas Giant	12.33	270.16	3.052	1,244	2012
WASP-41 c this	Gas Giant	13.10	1,010.70	421.000	241	2015

WASP-41 c Planet Profile

Physical Specs

Radius

13.10 R⊕

Radius (Jupiter)

1.170 R♃

Mass

1,010.70 M⊕

Mass (Jupiter)

3.180 M♃

Density

2.47 g/cm³

Surface Gravity

5.89 g (Earth)

Classification

Planet Type

Gas Giant

ESI Score 0.443

HZ Position Unknown

Controversial No

Discovery

Year 2015

Method Radial Velocity

Facility La Silla Observatory

Telescope 1.2 m Leonhard Euler Telescope

Size rank in cohort

Rank by radius

#910of 1771

top 51.3%

This planet

13.10R⊕

Gas Giant median

13.52R⊕

Nearest-size peers

GJ 3021 b 13.10 R⊕ HD 221287 b 13.10 R⊕ HD 37605 c 13.10 R⊕

Metric	Earth	WASP-41 c	Jupiter
Radius (R⊕)	1.00	13.10	11.21
Mass (M⊕)	1.00	1,010.70	317.83
Density (g/cm³)	5.51	2.47	1.33
Surface Gravity (g)	1.00	5.89	2.53
Insolation (S⊕)	1.00	—	0.037

Alternative Mass Estimates

Method	Value	Interpretation
Minimum mass (M sin i)	1,010.699 M⊕	Lower bound from radial-velocity fitting.

Star Catalogue Identifiers

TIC

TIC 398943781

Gaia DR2

Gaia DR2 6160877943251930368

Gaia DR3

Gaia DR3 6160877943251930368

System

WASP-41

Percentile among Gas Giant cohort

Radius 13.100 R⊕ · percentile 46 / cohort 1771

Mass 1,010.699 M⊕ · percentile 67 / cohort 1747

Orbital period 421.00 d · percentile 65 / cohort 1533

Distance 163.37 pc · percentile 46 / cohort 1759

ESI 0.443 · percentile 99 / cohort 1771

Orbit & Habitability

Orbital Dynamics

Period

421.000 days

Semi-major axis

1.0700 AU

Eccentricity

0.294

Inclination

— °

Year Length

A year here lasts about 1.15 Earth years on a mildly elliptical path at a mean orbital distance of 1.0700 AU.

Extended Orbital Architecture

Semi-major axis / stellar radius

265.000

RV semi-amplitude (K)

94.000 m/s

Long. of periastron (ω)

353.00°

Angular separation (arcsec)

6.55000

Eq. Temperature

241K

(-32 °C)

Insolation (S⊕)

—

Earth = 1.00

Earth Similarity (ESI)

0.443

0 = alien, 1 = Earth-identical

Insufficient insolation data — surface water would be frozen.

Discovery Paper

Primary reference

Neveu Vanmalle et al. 2015

Instrument

CORALIE Spectrograph

Publication

2015-09

Observation locale

Ground

Discovery cohort

Planets confirmed in 2015 at La Silla Observatory (10 shown).

Wolf 1061 b · Rocky Terrestrial Wolf 1061 c · Super-Earth HD 1461 c · Sub-Neptune GJ 3341 b · Sub-Neptune Wolf 1061 d · Sub-Neptune HD 204313 c · Neptune-like GJ 3293 c · Neptune-like GJ 3293 b · Neptune-like HD 175607 b · Unclassified WASP-47 c · Unclassified

Host System: WASP-41

Spectral Class

G-type yellow (Sun-like)

Effective Temperature

5,545 K — cooler than the Sun (5,778 K)

Estimated Age

1.20 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

0.870 R☉

Stellar Mass

0.930 M☉

Metallicity [Fe/H]

0.06

Extended Stellar Properties

Surface gravity (log g)

4.530 dex

Stellar density

1.990 g/cm³

Systemic radial velocity

3.28 km/s

Rotational v·sin i

2.64 km/s

Rotation period

18.41 days

Metallicity ratio

[Fe/H]

Distance

163.37 parsec

Light-years 532.84 ly

V-band magnitude

11.63 mag

Voyager-speed travel 9,396,709 yr

Multi-band Host Photometry — 11 bands

Astrometric Data

Parallax

6.092 mas

Total Proper Motion

19.062 mas/yr

PM Right Ascension

14.90 mas/yr

PM Declination

11.89 mas/yr

Galactic Cartesian (pc)

x = -0.846 · y = -0.159 · z = -0.510

Equatorial (J2000)

RA 190.61880° · Dec -30.63982°

Galactic ℓ, b

300.654° · 32.192°

Ecliptic λ, β

202.375° · -23.861°

HTM-20 index

-937862132