The Southern Hemisphere

Explore the celestial sphere with our Southern Hemisphere all-sky chart

At a glance

How the Sky Guide events will appear in December

Deep-sky tour

This month’s deep-sky tour visits objects in Orion, including a number ’37’ star formation

Instro met

instromet.co.uk

The Sky Guide Challenge

Locate and image three variable nebulae to see how they change over time

Binocular Tour

Locate this month’s selection of wide-field targets in and around Orion, the Hunter

Star of the month

Spot Mintaka at the top of Orion’s Belt

Comets and asteroids

Follow C/2021 A1 Leonard, which may reach naked-eye brightness this month

Astronomy Photography of the Year

rmg.co.uk/astrophoto

Moonwatch

December’s top lunar feature to observe