121477
121477 is a minor planet in the outer region of the asteroid belt, orbiting the Sun between Mars and Jupiter. It was discovered on October 10, 2000, by astronomers at the Lincoln Near-Earth Asteroid Research (LINEAR) project. The asteroid is classified as a main-belt asteroid, which means it follows a stable orbit within the asteroid belt. Its orbit has a semi-major axis of approximately 3.1 astronomical units (AU), with an orbital period of about 5.6 Earth years. The asteroid has a relatively small size, estimated to be around 2 kilometers in diameter. Its surface composition is not well-determined, but it is likely to be similar to other asteroids in the main belt, consisting primarily of rocky and metallic materials. 121477 does not pose any significant threat to Earth, as its orbit does not bring it close to our planet. The asteroid is named after the discoverer's institution, the Lincoln Laboratory, which is part of the Massachusetts Institute of Technology.