By Philip's Maps
By Nicolas Cheetham
By Phillips, A. C.
By Berg, Walter
By Moore, Patrick
By David Geddes
By Leendertz, Lia
By Apt, Jay, Helfert, Michael, Wilkinson, Justin, Ressmeyer, Roger, National Geographic Society (U. S.)
By The German Space Centre
By Barrow, John D.
By Dunlop, Storm, Tirion, Wil, Royal Observatory Greenwich, Collins Astronomy
By Eklöf, Johan, DeNoma, Dr. Elizabeth
By Emerson, D.
By Kaler, James B.
By BULKELEY, Rip, Thompson, E. P., Ben
By Kolb, Rocky
By Baker, J. A., Fanshawe, John, Macfarlane, Robert, Cocker, Mark
By brian-may-patrick-moore-chris, Brian May
By Alex Gordon Smith
By Iain Nicholson
By Gribbin, John
By Geddes, David
By John, Duncan
By Light, Michael
By Hendrie, Michael
By Colin Pillinger