CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

1 parsec = _________ metres.


Open in App
Solution

Step 1 :Given

  1. Parsec is the distance at which the mean radius of the earth's orbit subtends an angle of one arc second.

How to Measure Things That Are Astronomically Far Away | WIRED

Step 2 : Calculation of 1 parsec

1. The radius of the earth's orbital is 1 astronomical unit (AU) = 1.5×1011m

2. 1 arc second = 13600th of a degree.

3. Anglesubtended(θ)=Radiusofearth'sorbitDistanceDistance=Radiusofearth'sorbitAnglesubtended1Parsec=1AU1arcsecond1AU=1.5×1011m1arcsecond=13600×π180So,1Parsec=1.5×1011m13600×π180=3.1×106m

Hence, 1 parsec = 3×1016meters.


flag
Suggest Corrections
thumbs-up
0
BNAT
mid-banner-image