The asterism called the "Big Dipper" (which is the central part of the constellation named "Ursa Major") has two fairly prominent stars which act as a pointer to the north star Polaris. Polaris is a relatively dim and undistinguished star whose positioning almost directly above the north pole is very conveniently located in the sky.
No star is located at the celestial pole - thank goodness.
You are probably thinking of Polaris
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PolarisThe pole star Polaris would be at an elevation of 73 degrees above the horizon (plus or minus about a half-degree) if you lived in Nunavit, Canada, or Ostrov Dzhangylakh, Siberia at 73 N.
But you would only be able to see it between late August through early May; at that latitude, the Sun would be above the horizon continuously from June through August.
When you are located at 90 degrees south latitude ... i.e. when you stand on the South Pole ...
the south celestial pole is the point in the sky directly over your head.
That's the highest in the sky that it can ever get.
The "altitude", or elevation angle above the horizon, is approximately equal to your latitude in the northern hemisphere. It isn't PRECISELY equal, since Polaris isn't precisely above the north pole.
The South Pole is the southernmost point of the Earth's surface. Located at 90 degrees south latitude in the middle of Antarctica. All of the lines of longitude converge there so the South Pole has no longitude (or conversely, any longitude).
The Pole Star (also known as Polaris), is in Ursa Minor. The Pole Star is also known as Alpha Ursae Minoris.
if you only had a compass how would you tell whether you were at the south pole
The latitude of the south pole is 90 degrees south latitude.
The celestial equator is an imaginary line extending infinitely far out. It doesn't have an altitude in any real sense.
First, we need the "transit altitude" of the celestial equator, at 80 degrees north. That's 90 - 80 degrees = 10 degrees. At noon (local apparent noon) the Sun's altitude will be: 10 degrees + the Sun's declination. That's the altitude of the Sun's "upper culmination". At "midnight" (the Sun's "lower culmination") the Sun's altitude will be: the Sun's declination - 10 degrees. So, the difference in altitude is 20 degrees. The Sun is 20 degrees higher at noon.
The altitude of Polaris is roughly equal to your north latitude. Your longitude has no effect on it.At 35 degrees south latitude, the altituide of Polaris is negative 35 degrees. In other words,it's 35 degrees below the point on the horizon due north of you, and you can't see it.
The North Pole is at 90 degrees north latitude, and the South Pole is at 90 degrees south latitude. So, distance north or south of the equator is called 'latitude'. One way to remember this is to think of the rungs of a ladder. "Ladder"-- "Lati-" you step up or down the 'rungs of ladder-tude'.
The "North Celestial Pole" of the sky is always due north of you, and at the same angle above your horizon as whatever your north latitude is. It doesn't move, and the north star is always within about 1/3 of a degree from that point. Your longitude makes no difference at all. And neither does the time of day. And feet and inches have no place in angle measure. And latitude is north or south and longitude is east or west.
Houston is located at the following: 29° 45' North (Latitude). 95° 22' West (Longitude).
The azimuth of the North Celestial Pole is zero ... it's due North. The altitude of the North Celestial Pole is the same as your north latitude. In mid-town Manhattan, that's about 42.6 degrees.
Maximum inclination of moon's orbit to the ecliptic = 5.3°Current inclination of the ecliptic to the celestial equator = 23.4°Moon's maximum declination = 5.3° + 23.4° = + 28.7°Maximum altitude of the celestial equator at 42° north latitude = 90° - 42° = 48°Moon's maximum altitude at 42° north latitude = 48° + 28.7° = 76.7°
At 45 degrees north latitude, the north celestial pole appears 45 degrees above the northern horizon. At 45 degrees south latitude, the south celestial pole appears 45 degrees above the southern horizon.
If your latitude is 39 degrees north, then the north celestial poleis 39 degrees above your northern horizon.If your latitude is 39 degrees south, then the north celestial poleis 39 degrees below your northern horizon.
The altitude of the celestial north pole above the northern horizon is exactlythe observer's north latitude on the earth. The center of Frankfurt is very closeto 50° North latitude.
Any sky object within (your latitude) degrees of the north celestial pole.
Fairbanks is located at latitude 64.8 degrees north, so the north celestial pole is always 64.8 degrees above the horizon. Polaris itself is presently about 0.7 degrees from the celestial pole, so its altitude above the horizon will vary between 64.1 and 65.5 degrees during the course of a sidereal day.
North of the equator. In theory, about 0 degrees, or further north.
If Polaris appears 60° above the northern horizon, then you are pretty near 60° north latitude. If you're on the equator ... 0° north latitude ... then Polaris is on the horizon ... 0° altitude. If you're at the north pole ... 90° north latitude ... then Polaris is over your head ... 90° altitude. The altitude above the northern horizon at which Polaris appears is nearly identical to your north latitude. ================================================= The difference (error) between Polaris and the real North Celestial Pole is about 0.7 degree. Not good enough for precise navigation or surveying, but just fine for directions when you're hiking.
Yes. "Declination" on the celestial coordinate system is the counterpart of "latitude" on the terrestrial coordinate system. Positive and negative declination correspond respectively to north and south latitude.
The latitude of the observer is equal to the altitude of Polaris. Therefore, if the altitude of Polaris is 43 degrees, then the latitude of the observer is 43 degrees.
the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes