This Week’s Sky at a Glance, January 18 – 26

  Friday, January 18 • Zero-magnitude Capella on high, and equally bright Rigel in Orion’s foot, have almost the same right ascension. This means they cross your sky’s meridian at almost exactly the same time: around 9 or 10 p.m. now, depending on how far east or west you live in your time zone. So, whenever Capella passes its very highest, Rigel always marks true south over your landscape, and […]

The post This Week’s Sky at a Glance, January 18 – 26 appeared first on Sky & Telescope.