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Jika kita menganggap bahwa pergeseran merah ini disebabkan oleh efek Doppler di mana galaksi menjauhi kita maka hal ini membawa kita pada suatu gambaran tentang alam semesta yang mengembang dan, dengan melakukan ekstrapolasi waktu ke belakang, kita sampai pada teori dentuman dahsyat atau Big Bang. Hubble membandingkan jarak ke galaksi dekat dengan pergeseran merah mereka, dan menemukan hubungan yang linear
2) 582 x 72 = 41904 KM
3) laju menjauh suatu objek dapat diketahui dengan membandingkan letak spektrum yang mencirikan objek tersebut dari pengamatan leyak spektrumnya.... sedangkan jarak dari pengamat dapat diketahui dengan banyak cara, seperti bintang variabel cepheid (yang dahulu digunakan Hubble), efek lensa gravitasi, efek Sunyaev-Zeldovich, supernova tipe Ia jauh, dan relasi Tully-Fisher
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