221937

221937 is a minor planet discovered by astronomers at the Palomar Observatory on March 3, 2003. It is classified as a near-Earth asteroid and belongs to the Apollo group. Its orbital period is approximately 3.6 years, and it has a semi-major axis of 2.2 AU. The asteroid's diameter is estimated to be between 0.5 and 1.2 kilometers.

While 221937 is not considered a potentially hazardous asteroid due to its relatively small size and orbital characteristics, it does cross Earth's orbit. Its closest approach to Earth occurs at a distance of about 0.05 AU, which is roughly 7.5 million kilometers. This distance is well outside the Moon's orbit, so there is no risk of impact with Earth.

The composition of 221937 is not yet fully determined, but it is believed to be a stony asteroid. Further observations and analysis are ongoing to better understand its properties and origin. Its discovery contributes to the ongoing effort to catalog and characterize near-Earth objects, which is crucial for planetary defense and scientific understanding of the solar system.