Circumpolar constellations are those that never set below the horizon. The further north (or south) one travels, the more constellations are circumpolar. Where I live, above the 45th parallel, most of the Big Dipper stars are circumpolar, but Arcturus is not, and the constellation of Orion sets below the horizon in the summer.
Equatorial constellations are those that pass directly overhead when one is between the tropics of Cancer and Capricorn. I believe these are primarily the 13 constellations of the zodiac.
Circumpolar constellations are those that, from the viewer's latitude, never set.
At South Pole, all constellations south of the celestial equator are circumpolar, and similarly for the North Pole.
There are no circumpolar constellations at the equator.
For mid north latitudes, circumpolar constellations include Cassiopeia. Ursa Minor, Draco, Cepheus, and Ursa Major.
Any constellation found in the zodiac are not circumpolar. Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricornus, Aquarius and Pisces, are notcircumpolar constellations; those are seasonal instead.
This could be answered in a number of ways but the main one for me is that they never set. They are always above the horizon. I live at latitude 35° South, so for me, stars with a declination (celestial latitude) of more than 90°-35° = 55° are circumpolar.
Your observing location would be any point on the equator.
Seen from there, every object in the sky is above the horizon for half the time
and below it for the other half, no matter how close it is to one of the celestial
poles.
A few circumpolar constellations (constellations seen year-round): Cassiopeia, Cepheus, Big Dipper (Big Bear), Little Dipper (Lesser Bear)
You would be at the North Pole, or at the South Pole.
Circumpolar stars/constellations are stars/constellations that always stay in the sky; they never rise or set.
They are always visible in the (clear) night sky.
That's because they don't rise and set.
They are always above the horizon.
At the equator, you will see no circumpolar stars.
If you were standing on the equator, how many circumpolar stars would you see?
No they do not. By definition circumpolar stars do not "rise". They are above the observer's horizon at all times.
For example, if you live at a latitude of 50° north, the circumpolar stars will be all stars that are up to 50° around the celestial north pole. As another example, if you live at a latitude 30° south of the equator, the circumpolar stars will be all those that are in a circle up to 30° around the celestial south pole.
In astronomy, it is a word denoting a star that from a given observer's latitude does not go below the horizon. For instance, no matter what time of year it is, if I go out on a clear night in Britain I can always see the stars of the plough (big dipper), they are circumpolar. However I can only see Orion in winter, it is not circumpolar.
Nothing seen in the sky from a point on the Equator is "circumpolar", meaning that everything in the sky appears to rise and set.
All stars are circumpolar
At the equator, you will see no circumpolar stars.
A circumpolar star never sets below your horizon.
Circumpolar motion refers to the motion of the stars relative to the viewer in a particular spot. Stars that are said to be circumpolar never cross the horizon as they cross the sky for the viewer.
If you were standing on the equator, how many circumpolar stars would you see?
Circumpolar Constellation
They are always visible in the sky. (Unless it's cloudy). They don't "rise" and "set" at the latitudes where they are circumpolar.
No. The Zodiac are 12 constellations that lie in the plane of the ecliptic; circumpolar ("moving around the pole") stars are well above or below the ecliptic.
No they do not. By definition circumpolar stars do not "rise". They are above the observer's horizon at all times.
Polaris
Circumpolar stars/constellations always stay above our horizon, if they go below our horizon than they are no longer circumpolar.