mei 202013
Anne's Picture of the Day: Planetary Nebula NGC 7354

May 20, 2013 NGC 7354, a small planetary nebula in Cepheus Image Credit: Bruno Conti, ESA/Hubble & NASA NGC 7354 is a small, relatively bright planetary nebula of about half a light-year across, located about 4,200 light-years away from Earth in the northern constellation of Cepheus (named after Cepheus, King of Aethiopia in Greek mythology). [continue reading]