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Julian Dates and Elapsed Time
Grade Level
Astronomy
AST.050 Julian Dates and Elapsed Time
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A leap-year fall observing log uses decimal dates for two entries. The observation times are decimal dates 2040.900 and 2040.950. The year has 366 days. Which calculation correctly gives the elapsed time?
A
(2040.900 - 2040.950) × 366 = -18.3 days
B
(2040.950 - 2040.900) × 366 = 18.3 days
C
(2040.950 - 2040.900) × 24 = 1.2 days
D
(2040.950 - 2040.900) × 365 = 18.25 days
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