✧ Spring Triangle

  The Spring Triangle is an asterism in Virgo.

      ●⠤⠤⠤⠤⠤⣄⣀⣀⣀⣀⣀
      ⠘⡆         ⠈⠉⠉⠉⠉⠉⠓⠒⠒⠒⠒⠲⠤⠤⠤⠤⠤⣄⣀⣀⣀⣀⣀
       ⢹⡀                              ⠈⠉⠉⠉⠉⠉⠓⠒⠒⢒⣲•
        ⢧                                    ⣠⠴⠚⠉
        ⠘⡆                               ⣀⡤⠖⠋⠁
         ⢹⡀                          ⢀⣠⠴⠚⠁
          ⢧                       ⣀⡤⠞⠉
          ⠘⡆                  ⢀⡤⠖⠋⠁
           ⢹⡀             ⢀⣠⠴⠚⠉
            ⢧          ⣀⡤⠖⠋
            ⠘⡆     ⢀⣠⠴⠋⠁
             ⢹⡀ ⣠⠴⠚⠉
              •⠋⠁

  Type            Asterism
  Constellation   Virgo
  Stars           3

  More information about Spring Triangle

  The Spring Triangle, made up of Arcturus, Spica and Regulus, is what is
  left once the winter constellations have set and the summer ones have
  not yet risen. The way to find it is the handle of the Big Dipper:
  follow its curve away from the bowl and it takes you to Arcturus, and
  carrying the same curve onwards takes you to Spica. Some versions of the
  triangle use Denebola, in the tail of Leo, in place of Regulus.

  Etymology
  From        English
  Reading     the Spring Triangle
  Literally   the spring triangle

  The evolution of Spring Triangle over time

  -50,000 years
  
                   Arcturus ●⡦⣄⡀
                             ⢣ ⠉⠑⠢⢄⡀
                             ⠈⡇    ⠈⠑⠢⢄⡀
                              ⠸⡄       ⠈⠙⠲⢤⣀
                               ⢱⡀          ⠈⠙⠲⢤⣀
                                ⢣              ⠈⠉⠒⠤⣀
                                ⠘⡆                  ⠉⠒⠤⣀
                                 ⠸⡀                     ⠉⠑⠢⢄⡀
                                  ⢳                         ⠈⠑⠢⢄⡀
                                   ⢇                            ⠈⠙⠲⢄⡀
                                   ⠘⡄                               ⠈⠑⠢⣄
                                    ⢱⡀                             ⢀⡠⠒⠉ • Regulus
                                     ⢣                         ⢀⣠⠔⠊⠁
                                     ⠈⣆                     ⣠⠴⠚⠉
                                      ⠸⡀                ⢀⠤⠒⠉
                                       ⢱            ⢀⡠⠔⠊⠁
                                        ⢧        ⣀⠤⠚⠁
                                        ⠈⡆   ⣀⡤⠖⠋
                                         ⠹⡠⠔⠊⠁
                                          • Spica
  
  now
  
  
  
  
  
                              ⢠⣀⣀⣀⣀⣀
                      Arcturus ●    ⠉⠉⠉⠉⠉⠓⠒⠒⠒⠒⠦⠤⠤⠤⠤⣄⣀⣀⣀⣀⡀
                               ⠈⡆                       ⠉⠉⠉⠉⠉⠓⠒⠒⠒⠒⠦⠤⣤⡤
                                ⠸⡄                              ⣀⡤⠖⠋⠁• Regulus
                                 ⢱                          ⣀⡤⠖⠋⠁
                                  ⢧                     ⣀⡤⠖⠋⠁
                                  ⠈⡆                ⣀⡤⠖⠋⠁
                                   ⠸⡄           ⣀⡤⠖⠋⠁
                                    ⢱       ⣀⡤⠖⠋⠁
                                     ⢧  ⢀⡠⠖⠋⠁
                                     ⠈•⠊⠁
                                        Spica
  
  
  
  
  
  +50,000 years
  
  
  
  
  
  
                                                                 ⢀⣀
                                                            ⢀⣠⣤⠶⠚⠉ • Regulus
                                                       ⣀⡠⣤⡲⠟⠋⠉
                                                  ⣀⡤⠔⣒⡭⠗⠋⠁
                                            ⢀⣀⠤⠖⢊⡩⠤⠒⠉
                                       ⣀⡠⠤⠒⠋⣁⡤⠖⠊⠁
                         Arcturus ⣀⡤⠔⠒⠉⠁⣀⠤⠒⠋⠁
                                 ⢸●⢀⣠⠴⠊⠉
                           Spica •⠊⠉
  
  
  
  
  
  

  Over 50,000 years either way the longest side of this figure changes by 21%, and the furthest
  any of its stars travels is 29.5 degrees. Proper motion only: this is the shape changing, not
  the sky turning or the pole moving.

  curl 'skymap.sh/Spring%20Triangle/evolution.gif'

  where it is tonight:  skymap.sh/Spring Triangle