STScI

Wedding

The largest provincial telescope has got its home. The “wedding” of telescope and dome tower is after more than 10 years of hard labor a central milestone to our student observatory. The precise maneuvering...

The planetary nebula Abell 39

Abell 39 is a planetary nebula with low surface brightness in the constellation Hercules. It shines predominantly in the blue light of the double ionized atomic oxygen [OIII]. It is assumed that the nebula is about 6800...