An O5 main-sequence star will be __________ compared to a K2 main-sequence star.
A. cooler and dimmer.
B. cooler and brighter.
C. hotter and dimmer.
D. hotter and brighter.
Answer:D
An O5 main-sequence star will be __________ compared to a K2 main-sequence star.
A. cooler and dimmer. B. cooler and brighter. C. hotter and dimmer. D. hotter and brighter.