Sidereal time is NOT used(). A.as the basi
题型:单项选择题
问题:
Sidereal time is NOT used().
A.as the basis for star charts
B.to enter a star finder
C.in sight reduction using Pub 249
D.in sight reductions of planet observations
Sidereal time is NOT used().
A.as the basis for star charts
B.to enter a star finder
C.in sight reduction using Pub 249
D.in sight reductions of planet observations