Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
High School Electives
/
Astronomy
/
Celestial Navigation and Position
Grade Level
Astronomy
AST.059 Celestial Navigation and Position
0%
Skill Level
🟢 Easy
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
Which observation-time pair is most useful for estimating longitude?
A
The Sun's color at sunset with no clock
B
The UTC time when the Sun crosses the local meridian
C
The number of visible stars after midnight
D
The temperature when Polaris is highest
Submit Answer