description 44 Nysa Overview
44 Nysa is a main-belt asteroid discovered by Hermann Goldschmidt in 1857. It is the namesake of the Nysa asteroid family, a group of bodies identified by related orbital and physical characteristics. Nysa is classified as an E-type asteroid, a relatively uncommon spectral class associated with a bright, enstatite-rich surface. Its classification and family membership make it a subject in studies of asteroid composition and the collisional history of the main belt.
help 44 Nysa FAQ
Who discovered 44 Nysa, and when?
German astronomer Hermann Goldschmidt discovered 44 Nysa on May 27, 1857. It was named after Nysa, the mythical land associated with the upbringing of Dionysus. [NASA JPL database](https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html#/?sstr=44)
Why is 44 Nysa classified as an E-type asteroid?
E-type asteroids are uncommon, high-albedo bodies associated with bright, relatively reflective mineral surfaces. Observations place Nysa at roughly 70 kilometers across with an optical albedo around 0.55.
What is the Nysa asteroid family?
The Nysa name is used for a dynamically related and overlapping complex of inner-main-belt asteroids, sometimes discussed together with the Hertha and Polana groups. 44 Nysa itself is an unusual E-type body within that broader region, so family membership depends on the classification used.
How long does 44 Nysa take to rotate?
Radar and light-curve studies give 44 Nysa a rotation period of about 6.42 hours. Its orbit lies in the main asteroid belt, and it is not classified as a near-Earth asteroid.
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