On clear Friday nights, the public can visit the observatory for a guided view of the Ithaca sky through the large 12 inch refracting telescope or smaller, portable telescopes. อ่านเพิ่มเติม
On clear Friday nights, the public can visit the observatory for a guided view of the Ithaca sky through the large 12 inch refracting telescope or smaller, portable telescopes. อ่านเพิ่มเติม