Did you mean: 10257 Katecynthia
10257 Garecynthia
Asteroid
Asteroid group: Asteroid belt
Discovered: October 16, 1977
Discoverers: Ingrid van Houten-Groeneveld, Tom Gehrels, and Cornelis Johannes van Houten
Discovery site: Palomar Observatory
Orbital period: 2,354 days
Orbits: Sun
Absolute magnitude: 13