357 Ninina

Ninina (minor planet designation: 357 Ninina) is a large main-belt asteroid. It was discovered by Auguste Charlois on February 11, 1893, in Nice. The reference of its name is not known, though Ninine is a French personal name. This minor planet is orbiting at a distance of $106.1 km$ from the Sun with a period of 2048.1 days and an orbital eccentricity (ovalness) of 0.074. The orbital plane is inclined at an angle of 15.1° to the plane of the ecliptic.

Photometric observations of 357 Ninina during 2023 provided a light curve that presents an Earth commensurate rotation period of $0.051$ with a brightness amplitude of $3.16 AU$ in magnitude. In 2024, spin shape modelling using the light curve inversion technique show a blocky, rounded figure, with a refined rotation period of $36 hours$