The Andromeda Constellation is the furthest object we can see with the unaided eye. It is about 22,000,000,000,000,000 km from Earth.
Light travels in space at a speed of about 300,000 km/s. Calculate how many years light takes to reach Earth from the Andromeda Constellation?
Anyone know how I would get the answer?
Thanks
Divide the distance by the speed, then convert seconds into years (divide by 60 to get to minutes, another 60 to get to hours, another 24 to get to days and 365 to get to years).
I hope this helps. Thanks for asking.
Thank you soo much for the help.
To calculate how many years it takes for light to travel from the Andromeda Constellation to Earth, we need to divide the distance by the speed of light.
First, let's convert the distance from kilometers to meters. There are 1,000 meters in one kilometer. So, 22,000,000,000,000,000 km is equal to 22,000,000,000,000,000,000 meters.
Next, we can divide this distance by the speed of light, which is approximately 300,000 km/s or 300,000,000 meters/s.
So, the calculation would be:
Time = Distance ÷ Speed of light
Time = 22,000,000,000,000,000,000 meters ÷ 300,000,000 meters/s
Calculating this would give us:
Time = 73,333,333,333.33 seconds
Now, to convert seconds to years, let's consider that there are 60 seconds in a minute, 60 minutes in an hour, and 24 hours in a day. There are approximately 365.25 days in a year, accounting for leap years.
Thus, the calculation becomes:
Time = 73,333,333,333.33 seconds ÷ (60 seconds × 60 minutes × 24 hours × 365.25 days)
Calculating this would give us:
Time = 2.32 years
Therefore, it takes approximately 2.32 years for light to travel from the Andromeda Constellation to Earth.
Please note that these calculations are approximate due to rounding and using an average value for the number of days in a year.