Crab Nebula
Description of an ancient sinagua native american observatory showing the earliest known observation recorded by man of the supernova of 1054 ad known as the crab nebula or m1.
http://www.delange.org/M1/M1.htm
Petroglyphs AZ Secret Site
Supernova, 1054, ad, a.d., m-1, m1, m-1, ngc, 1952, m, 1, supernovae, crab, nebula, native, american, archaeology, astroarchaeology, astronomy, petroglyph, petroglyphs, hohokam, sinagua, anasazi, rock, ancient, art, secret, canyon, arizona, secret, site, sun, watch, shrine, station, observatory, observatories, big, deer, allen, hwang, astronomer, astronomers, space, moon, star, stars, indian, chaco, white, mesa.
http://www.delange.org/M1/M1_2.htm