Exoplanet

MASCARA-1 b

Orbiting MASCARA-1

Overview

MASCARA-1 b is an exoplanet orbiting the star MASCARA-1, discovered in 2017 using the Transit method. It is a Jupiter-sized world.

Key Measurements

Radius

17.90

Earth radii

015 R⊕

Mass (est.)

204.77

Earth masses

0500 M⊕

Orbital Period

2.1

days

0.1d10,000d

Distance

182.3

parsecs

Nearby10,000 pc

Equilibrium Temp

2594

K

150 K3,500 K

Radius (Earth radii)

17.90

Mass (Earth masses)

204.77

Estimated

Equilibrium Temperature

2594 K

Parameter source: Hooton et al. 2022

Orbital Period

2.149+0.000−0.000days

Semi-Major Axis

0.0404+0.0000−0.0000au

Eccentricity

0.0003+0.0003−0.0002

Argument of Periastron

-16.0+67.0−52.0deg

Distance from Earth

182.3 pc (~594 ly)

Spectral Type

Unknown

Temperature

7490 K

Mass (Solar)

1.90 M☉

Radius (Solar)

2.08 R☉

Luminosity

1.08 log L☉

Planets in System

1

Stars in System

1

Coordinates (RA, Dec)

317.5515°, 10.7389°

Discovery Method

Transit

Discovery Year

2017

Data Sources
NASA Exoplanet Archive

Source ID: MASCARA-1 b

System Context

MASCARA-1 b orbits MASCARA-1 and was reported in 2017 and was detected with the Transit method.

Published measurements list a radius of 17.9 Earth radii, a mass of 204.77 Earth masses (estimated), an orbital period of 2.15 days, and an equilibrium temperature near 2,594 K.

Catalog data places the system at about 182.3 parsecs from Earth and 1 known planet in the system.

Host star

Explore the stellar record for this system to compare temperature, spectral type, and known planets.

Open MASCARA-1
MASCARA-1 b