Parallax Flashcards
1
Q
What is parallax?
A
The change in the apparent position of a nearby object with respect to distant objects as the observer’s position changes.
2
Q
What does parallax use to determine the distance to nearby stars?
A
Trigonometry
3
Q
How far (in pc) is an object away if the parallax angle is 1 arcsecond?
A
1 pc
4
Q
How can distance be calculated?
A
d=1/p
d in parsecs
p in arcseconds
