How Far Away Is It - 08 - Supernovae and Star Clusters (4K)
どれだけ遠い - 05 - 近くの星 (4K)
ペテルギウスの距離が間違っていた、その他の驚くべき発見
how far are the stars? comparison of distances of star, galaxies and planets
超巨星「ベテルギウス」を訪ねて
How Far Away Is It - 06 - Distant Stars (4K)
Betelgeuse Star - Distance from earth: 640 light years
What If Betelgeuse Exploded Right Now?
ベテルギウス星は地球にとって危険ですか?
教室支援 - ベテルギウス
Betelgeuse Supernova - When Will It Happen?
Watch How Betelgeuse Star TRUE Color Revealed After 2,000 Years
Distance To Far Away Star Betelgeuse Using m-M=5logd-5
Brian Cox Warn: Betelgeuse Supernova Explosion Imminent
What Is Rigel And Why Is It So Bright?
Classroom Aid - Betelgeuse - CH Cyg - Rigel