✧ Triangulum Australe Triangulum Australe is an asterism in Triangulum Australe. ⢠•⡀ ⡴⠋ ⢳⡀ ⢠⠞⠁ ⢳⡀ ⡴⠋ ⠳⡄ ⢀⡞⠁ ⠹⡄ ⣰⠋ ⠹⡄ ⢀⡞⠁ ⠹⣄ ⣰⠋ ⠘⣆ ⢀⡞⠁ ⠘⣆ ⣰⠋ ⠘⣆ ⢀⡞⠁ ⠈⢧ ⣰⠋ ⢀⣀⣀⣀⣀⣀⣀⣀⡤⠤⠤⠤⠤⠤⠬• •⠓⠒⠒⠒⠒⠒⠒⠋⠉⠉⠉⠉⠉⠉⠉ Type Asterism Constellation Triangulum Australe Stars 3 More information about Triangulum Australe A small, neat triangle of second and third magnitude stars below The Pointers, and easier to pick out than the northern Triangulum it is named after. It was drawn from the measurements Pieter Keyser and Frederick de Houtman brought home from the Dutch voyage to the East Indies in the 1590s, the same batch that produced Grus, Pavo and Phoenix. NGC 6025, an open cluster, sits at the northern corner. Etymology From Latin Reading Triangulum Australe Literally the southern triangle The evolution of Triangulum Australe over time -50,000 years • Betria ⢸⠉⢇ ⡏ ⠈⡆ ⢸⠁ ⠘⡄ ⡏ ⠹⡀ ⢸ ⢱ ⡇ ⢣ ⢸ ⠈⢇ ⡇ ⠈⡆ ⢸ ⠘⡄ ⡇ ⠸⡀ ⢸ ⢱⡀ ⡇ ⢳ ⢸ ⢇ ⡇ ⠈⣆ ⢸ ⠘⡆ ⡇ ⠸⡀ ⢸ ⢱⡀ ⢀⣇⣀⣀⣀⣀⣀⣀⣠⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠤⠴⠒• Gatria • Atria now ⢠• Betria ⢀⠴⠁⠈⢦ ⡠⠋ ⠈⢣ ⢠⠎⠁ ⠣⡀ ⢀⠴⠁ ⠑⡄ ⡠⠋ ⠘⣆ ⢠⠎⠁ ⠘⢆ ⡴⠁ ⠈⢢ ⡠⠋ ⢣⡀ ⢠⠜⠁ ⢀⣀⣳⡀ ⠴⠥⠤⠤⠤⠤⠤⠴⠒⠒⠒⠒⠒⠒⠒⠒⠚⠉⠉⠉⠉⠉⠉⠉⠉⠉ • Gatria • Atria +50,000 years Betria ⢀⣀⣀⡠⠤⠤•⠤⣄⣀ ⢀⣀⣀⠤⠤⠤⠒⠒⢊⣉⣉⣁⣀⣀⠤⠤⠤⠤⠤⠔⠚⠛⠓• Gatria ⢠⠤⠤⠴⠶⠶⠞⠛⠛⠓⠒⠒⠉⠉⠉⠉⠉⠁ • Atria Over 50,000 years either way the longest side of this figure changes by 13%, and the furthest any of its stars travels is 6.1 degrees. Atria drifts the opposite way to the other 2, which travel together. Proper motion only: this is the shape changing, not the sky turning or the pole moving. curl 'skymap.sh/Triangulum%20Australe/evolution.gif' where it is tonight: skymap.sh/Triangulum Australe