2017-09-20 Shorty (crater) - Google 検索 https://www.google.co.jp/search?q=Shorty+(crater)&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi3sYfF_MXWAhXIuBoKHcHGAWYQ_AUICigB&biw=1436&bih=803