It has an apparent magnitude of 8.23,[2] making it readily visible in small telescopes but not to the naked eye.
Gaia DR3 parallax measurements imply a distance of 594 light-years and it is currently receding with a heliocentric radial velocity of 14 km/s.
[5] It radiates 12 times the luminosity of the Sun from its photosphere at an effective temperature of 7,490 K, giving it the typical white hue of an A-type star.
[7] MASCARA-1b has a measured equilibrium temperature of 2,594±2 K.[5] A 2022 study conducted on the planet found that it was unusually reflective for a hot Jupiter, having a geometric albedo of 0.171+0.066−0.068.
[7] Attempts to characterize its spectrum around the same year in a different study have failed due to MASCARA-1b's high surface gravity, resulting in a compact planetary atmosphere.