Stars Compared (2005)
Stars come in many sizes and colours, as this diagram for my Illustrated Atlas of the Universe shows. On the bottom
right are Arcturus (orange giant), Rigel (blue giant), Sirius A (blue dwarf) and the
Sun (yellow dwarf). Meanwhile on the left at the top the Sun is shown blown up and
compared with Proxima Centauri (a red dwarf) and Sirius B (a white dwarf).
