A bit late, but Happy Ostara to everyone. Don't forget that there is a public Ostara ritual on Saturday March 25th. You can reading more about it here: MPRC Events Page.
An exerpt from an article on WitchVox about Ostara.
Easter gets its name from the Teutonic goddess of spring and the dawn, whose name is spelled Oestre or Eastre (the origin of the word "east" comes from various Germanic, Austro-Hungarian words for dawn that share the root for the word "aurora" which means " to shine"). Modern pagans have generally accepted the spelling "Ostara" which honors this goddess as our word for the Vernal Equinox. The 1974 edition of Webster's New World Dictionary defines Easter thus: "orig., name of pagan vernal festival almost coincident in date with paschal festival of the church; Eastre, dawn goddess; 1. An annual Christian festival celebrating the resurrection of Jesus, held on the first Sunday after the date of the first full moon that occurs on or after March 21." The Vernal Equinox usually falls somewhere between March 19th and 22nd (note that the dictionary only mentions March 21st, as opposed to the date of the actual Equinox), and depending upon when the first full moon on or after the Equinox occurs, Easter falls sometime between late-March and mid-April.