if a star is 47 light years away it took 47 years for the light to travel from that star to reach us ?
do have it right ? I'm trying to learn it the easiest way
2007-10-23 18:12:29 · 3 answers · asked by Kara 2 in Science & Mathematics ➔ Astronomy & Space
yaaaaaaaaaaay !!!!!!!!!!!
finally FINALLY after 2 weeks of hard thinking and trying to get it
I GOT IT !!!!!!!! YAAAY !
OH JOY !
2007-10-23 18:18:59 · update #1
Perfect!
A light year is the distance light travels in a year. It takes light 1 year to travel a light year.
2007-10-23 18:16:26 · answer #1 · answered by BotanyDave 5 · 2⤊ 0⤋
Yes, you're right. So you can see that a light year - 6 trillion miles approximately - is a very, very large distance in human terms. To give you some ideas of scale:
The nearest star to us( after the sun) is just over 4 light years away.
Our galaxy is 100,000 light years in diameter.
The nearest large galaxy to ours is over 2 million light years.
2007-10-24 05:28:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
That's the point!
Light year is the distance that light travels in one year.
It's about 9.46*10^12 km
2007-10-24 06:59:43 · answer #3 · answered by Ivan D 5 · 0⤊ 0⤋