2007-05-02 07:41:30 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
People aren't reading the question carefully. Rays of light from Earth would be reflected light from the Sun and lights from motorways and cities. But I seriously doubt the strength of those rays would be noticed 8.6 light years away. (Direct observation of planets around other stars has not proved possible as yet.)
It would take light 8.6 years from Sirius A (it is a binary system) to reach earth. And it would take light from the Sun the same time to reach Sirius. But they are both powerful light sources, where earth is not,
2007-05-02 08:24:27 · answer #1 · answered by Mint_Julip 2 · 1⤊ 0⤋
One light year is the distance light travels through space in one year. Sirius is 8.6 light years distant from Earth, meaning it would take light 8.6 years to travel from Earth to Sirius or vice versa.
2007-05-02 07:58:59 · answer #2 · answered by Chug-a-Lug 7 · 0⤊ 0⤋
It would take light 8.7 YEARS to reach Sirius.
2007-05-02 07:48:07 · answer #3 · answered by Evil Genius 3 · 0⤊ 0⤋
Around 8.6 years
2007-05-02 07:45:51 · answer #4 · answered by Gene 7 · 0⤊ 0⤋
8.6 years.
It is 8.6 lightyears away.
2007-05-02 07:46:03 · answer #5 · answered by Wedge 4 · 0⤊ 0⤋