Size beyond one megametre
Ten to the power of six
Ganymede, Callisto
Wolf 359
Size beyond one gigametre
Ten to the power of nine
Sirius, Altair
Vega, Polaris
Size beyond one terametre
Ten to the power of twelve
Antares, Pistol Star
Betelgeuse

Size beyond one petametre
Ten to the power of fifteen
Stringray Nebula, Ring Nebula
Helix Nebula, The Spire
Hourglass Nebula

Size beyond one exametre
Ten to the power of eighteen
Omega Centurai, Messier 54
Tarantula Nebula
Size beyond one zettametre
Ten to the power of twenty-one
Milky Way, Andromeda Galaxy
Fornax Cluster
Size beyond one yottametre
Ten to the power of twenty-four
Virgo Super Cluster, Eridanus Supervoid
Super Cluster Complex