The coordinates in the celestial coordinate system can help pinpoint where in the sky is each star, plants, or moons. It is analogous to the "normal" coordinates. IT also has hours of right ascension. The horizontal system is a hemisphere as it only contains what an observer can see in the night sky in 1 direction. It is based on the location of the observer. The horizontal system, however, involves the zenith, azimuth and latitude. The zenith is the point directly on top of the observer but has no fixed height. The altitude is how far the object is above the circle of the horizon, from 0 degrees (on the horizon) to 90 degrees (directly above you).
The azimuth is the location on the circle of the horizon an object is above, from 0 to 360 degrees, in the clockwise direction. It is calculated along with the direction of the North Star.
Constellations can tell you the direction North and South. Orion's Sword points South. Polaris, the North Star, can be located using the Big Dipper. There is a line between Merak, Dubhe and Polaris. Currently, it is a perfectly straight line. Constellations and asterisms can be used to locate directions to help you not get lost in the night if you don't have a compass. Ancient people used the Orion constellation to predict the seasons, as it is most easily seen during the winter season.
We made a presentation on the Southern Constellations. We had to partner up with the seniors and they used my computer as theirs cannot activate Stellarium. I learnt that you can find directions using constellations as Orion's Sword points South and Polaris (the North Star) points North. The horizontal system of coordinates allows us to locate a celestial body in the night sky, depending on where the viewer is. I feel happy as I had learnt about the Horizontal system, which I haven't learnt before, and looked at how useful constellations can be.
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| The celestial coordinate system. Credits to TWCarlson on Wikimedia Commons. Licensed under CC BY SA 3.0. |
Constellations can tell you the direction North and South. Orion's Sword points South. Polaris, the North Star, can be located using the Big Dipper. There is a line between Merak, Dubhe and Polaris. Currently, it is a perfectly straight line. Constellations and asterisms can be used to locate directions to help you not get lost in the night if you don't have a compass. Ancient people used the Orion constellation to predict the seasons, as it is most easily seen during the winter season.
We made a presentation on the Southern Constellations. We had to partner up with the seniors and they used my computer as theirs cannot activate Stellarium. I learnt that you can find directions using constellations as Orion's Sword points South and Polaris (the North Star) points North. The horizontal system of coordinates allows us to locate a celestial body in the night sky, depending on where the viewer is. I feel happy as I had learnt about the Horizontal system, which I haven't learnt before, and looked at how useful constellations can be.
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