300 Geraldina is a large Main belt asteroid.

[1] It was discovered by Auguste Charlois on October 3, 1890, in Nice.

[2] It is orbiting the Sun at a distance of 3.21 AU with a period of 5.74 yr and an eccentricity (ovalness) of 0.057.

The orbital plane is tilted at an angle of 0.73° to the plane of the ecliptic.

[1] Light curve analysis based on photometric observations of this asteroid made during 2005 show a rotation period of 6.842±0.001 h with a brightness variation of 0.18 in magnitude.