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Tsync Tsync
wrote...
Posts: 3450
Rep: 8 0
8 years ago
For what type of object is the period-luminosity relation used for determining distances?
A) T Tauri variables
B) Cataclysmic variables
C) Cepheids
D) Planetary nebulae
E) RR Lyrae variables
Textbook 
Astronomy Today

Astronomy Today


Edition: 8th
Authors:
Read 158 times
3 Replies
Minoring in physics
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RatatouilleRatatouille
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Posts: 3710
8 years ago
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Tsync Author
wrote...
8 years ago
Exactly what I needed Smiling Face with Open Mouth
Minoring in physics
wrote...
8 years ago
Happy to help Slight Smile
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