[1] The assumed S-type asteroid has a longer-than average rotation period of 25.5 hours and is likely elongated in shape.
[a] According to modern HCM-analyses by Nesvorný, as well as by Milani and Knežević, Berna is a non-family asteroid from the main belt's background population.
He computed the definitive orbit of the body, and also insisted to rename the minor planet to its current name, after it had been originally published as "Bernia".
Light-curve analysis gave a rotation period of 25.464 hours with a brightness variation of 0.28 magnitude (U=3).
It was identified based on light-curve observations taken in February 2004 by several astronomers, including Raoul Behrend at Geneva Observatory, Stefano Sposetti, René Roy, Donald Pray, Christophe Demeautis, Daniel Matter, Alain Klotz and others.