The phase correction should be applied to sights of Venus and Mars __________.
A
during day time observations only
B
during twilight observations only
C
at all times
D
when observed at altitudes of less than 25°
E
İlgili Sorular
Your vessel displaces 497 tons. The existing deck cargo has a center of gravity of 2.5 feet above th...What type of liquid is used in the liquid P/V breaker?Stuffer-braid rope has __________.What is the VCG for the cement in P-Tank #1 on the DEEP DRILLER if the ullage is 6.4 feet?If your bridge-to-bridge radiotelephone ceases to operate, you must ___________________.