[ad_1] Globular star clusters are my favorite objects to look at through a telescope. On a trip to Chile last year to experience my fifth total solar eclipse, I made a point to seek out this cluster, 47 Tucanae, in the night sky because I’d heard so much about it. I wanted to measure it […]

via Celebrating 30 Years: The Universe Through Hubble’s Eye – Sky & Telescope — Ten15AM