1" par sec is "

Arrange the following in the descending order. 1 light year, 1 par sec, 1 astronomical unit.

Which of the following is not a unit of time A) par - sec " " B) light - year " " C) micron " " D) sec

Which of the following is not a unit of time A) par - sec " " B) light - year " " C) micron " " D) sec

How many light years make 1 par sec ?

A star is located 9 ly away from us. What is its distance in par sec ? What is the parallax shown by this star when viewed from two locations 3xx10^(11)m apart. Given 1 par sec =3.084xx10^(16)m, and 1ly = 9.46xx10^(15)m.

Define par sec and light year. How are they related?

Which of the following is not a unit of time A) par sec B) light year C) micron D) sec

Which of these is largest : astronomical unit, light year and par sec ?