What properties of stars are stellar parallax used to measure?
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"Which following pairs of atoms, have a lower electron affinity? a) Ca,K b) I,F c) Li, Ra. I seriously don't know anything about electron affinity all ik that it can buy another element"
1 Answer
Mar 6, 2016
distance from Earth.
Explanation:
Stellar parallax is the method to measure distance to a star. Angle P is measured, Earth sun distance known by trigonometry we can find distance.
Picture credit ic. ogf. net.
