Confirmed Exoplanet Discovered 2023

MWC 758 c

A unclassified orbiting the a-type white MWC 758, located approximately 520.3 light-years from Earth.

Key parameters at a glance

  • Semi-major axis 100.0000 AU
  • Equilibrium temperature 500 K (227 °C)
  • Distance from Earth 520.34 light-years
  • Travel time at Voyager 1 speed 9,176,187 years

MWC 758 c Planet Profile

Physical Specs

Radius
R⊕
Radius (Jupiter)
R♃
Mass
M⊕
Mass (Jupiter)
M♃
Density
g/cm³
Surface Gravity
g (Earth)

Classification

Planet Type

Unclassified

ESI Score
HZ Position Unknown
Controversial No

Discovery

Year 2023
Method Imaging
Facility Large Binocular Telescope Observatory
Telescope Large Binocular Telescope
Metric Earth MWC 758 c Jupiter
Radius (R⊕)1.0011.21
Mass (M⊕)1.00317.83
Density (g/cm³)5.511.33
Surface Gravity (g)1.002.53
Insolation (S⊕)1.000.037

Star Catalogue Identifiers

HD

HD 36112

HIP

HIP 25793

TIC

TIC 73816033

Gaia DR2

Gaia DR2 3417062653416093184

Gaia DR3

Gaia DR3 3417062653416093184

System

MWC 758

Orbit & Habitability

Orbital Dynamics

Period
days
Semi-major axis
100.0000 AU
Eccentricity
Inclination
°

Year Length

Orbital period for this planet has not yet been measured.

Eq. Temperature

500K

(227 °C)

Insolation (S⊕)

Earth = 1.00

Earth Similarity (ESI)

0 = alien, 1 = Earth-identical

Insufficient insolation data — the surface is too hot to retain surface water.

Discovery Paper

Primary reference

Wagner et al. 2023

Instrument

LMIRCam

Publication

2023-07

Observation locale

Ground

Host System: MWC 758

Spectral Class

A-type white

Effective Temperature

7,314 K — hotter than the Sun (5,778 K)

Estimated Age

0.00 Gyr — younger than the Sun (4.6 Gyr)

Stellar Radius

2.014 R☉

Stellar Mass

1.500 M☉

Metallicity [Fe/H]

Distance
159.54 parsec
Light-years 520.34 ly
V-band magnitude
8.27 mag
Voyager-speed travel 9,176,187 yr

Multi-band Host Photometry — 11 bands

-0.28.68.57B8.27V8.20Gaia7.98TESS7.22J6.56H5.80K4.68W13.87W22.16W3-0.18W4

Astrometric Data

Parallax

6.240 mas

Total Proper Motion

26.991 mas/yr

PM Right Ascension

3.59 mas/yr

PM Declination

-26.75 mas/yr

Galactic Cartesian (pc)

x = 0.116 · y = 0.896 · z = 0.428

Equatorial (J2000)

RA 82.61472° · Dec 25.33241°

Galactic ℓ, b

181.248° · -4.775°

Ecliptic λ, β

83.320° · 2.064°

HTM-20 index

1582724323

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