Definitions
There is 1 meaning of the phrase
Observer's Meridian.
Observer's Meridian - as a noun
A meridian that passes through the observer's zenith
Example Sentences
"To determine a location's longitude, an observer must measure the angle between their zenith and the observer's meridian."
"The observer's meridian is an imaginary line connecting the observer's north and south horizon points."
"When the observer's meridian coincides with the prime meridian, the longitude is 0 degrees."
"An observer's meridian can be determined by aligning a plumb line with the local vertical direction."
"The crossing of an observer's meridian by a celestial body is called culmination."
