No, not all stars pass through the zenith each day. The zenith is the point directly above an observer, so only stars located along the observer's meridian will pass through the zenith as the Earth rotates. Other stars located off the meridian will pass at different altitudes in the sky.
That's the observer's 'zenith'. Since it's referenced to the "observer's head", each observer has a different zenith.
The Midnight Meridian refers to the line of longitude directly opposite the Prime Meridian, marking the halfway point between the International Date Line and the Prime Meridian. It is where each calendar day begins.
If you are located anywhere on earth that's more than 23.5 degrees from the equator, then the sun can never appear at your zenith. If you're anywhere within 23.5 degrees of the equator, then the sun will appear at your zenith, or very close to it, twice each year.
The longitude of every point on Earth, from the Prime Meridian out to halfway around the world in the westerly direction is labeled "west longitude". The longitude of every point on Earth from the Prime Meridian out to halfway around the world in the easterly direction is labeled "east longitude".
No, not all stars pass through the zenith each day. The zenith is the point directly above an observer, so only stars located along the observer's meridian will pass through the zenith as the Earth rotates. Other stars located off the meridian will pass at different altitudes in the sky.
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No meridian is a great circle. Each meridian is a semi-circle, extending between the poles.
That's the observer's 'zenith'. Since it's referenced to the "observer's head", each observer has a different zenith.
The Midnight Meridian refers to the line of longitude directly opposite the Prime Meridian, marking the halfway point between the International Date Line and the Prime Meridian. It is where each calendar day begins.
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If you are located anywhere on earth that's more than 23.5 degrees from the equator, then the sun can never appear at your zenith. If you're anywhere within 23.5 degrees of the equator, then the sun will appear at your zenith, or very close to it, twice each year.
4,790 miles long
The Prime Meridian and the meridian of 180° longitude combine to form a great circle on the Earth. Each of them alone is a semi-circle.
A reprehensible: 2 blameworthy B wanton: 1 immoral C zenith: 3 peak
North and South Pole. Look at the line of the meridian- it runs all the way North, and all the way South.
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