回7#
佢會教你點睇星,望上天空起碼知道邊粒星打邊粒星先啦,
最緊要知點搵個粒Polaris先啦(就係Big Dipper同Cassiopeia(唔知有冇串錯)之間)
當然要學埋邊個月份睇星,邊個時間睇星,會睇到d咩星啦
之後會講少少history,講下Kepler's laws
之後就gravity同orbital motions,energy in orbital motion個d
跟住講下parallax, stellar distance, magnitude, spectrum, luminosity, Hertzsprung-Russell diagram呢d
最後講blue,red shift, binary star, modern astronomical discovery, dark matter, Hubble's law呢d
大至係咁多,好辛苦地背左最光個20粒星既名,所屬星座同位置@@ |
