MASCARA-4 b
A confirmed exoplanet orbiting MASCARA-4.
Compared with Earth
- Size
- About 17 times Earth's width.
- Mass
- About 532 times Earth's mass.
- Temperature
- About 1,977 °C (3,590 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 2.8 Earth days.
Planet
- Radius
- 16.98 × Earth
- Mass
- 532.4 × Earth
- Density
- 0.481 g/cm³
- Equilibrium temperature
- 2,250 K
- Starlight received
- Unknown
- Orbital period
- 2.824 days
- Average distance from its star
- 0.0474 AU
Star
- Host star
- MASCARA-4
- Spectral class
- A — white
- Surface temperature
- 7,800 K
- Radius
- 1.79 × Sun
- Mass
- 1.75 × Sun
- Age
- Unknown
System
- Distance from Earth
- 556.7 light-years (170.7 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2020
- Method
- Transit
- Facility
- Multiple Observatories
Data from the NASA Exoplanet Archive, synced October 14, 2026.