Pick a star that reaches its highest point in the sky at midnight tonight.
Midnight is the moment when your back is to the sun.
Six months from now, when we are on the other side of the sun, that star
will be behind the sun, and it'll reach its highest point in the sky at Noon.
The reason stars and constellations reach the same position at different times
on different dates is because we set our clocks to match the position of the sun,
but as we travel around it, the sun is in the direction of different stars.
Tricky question when you think about it.There's a patch of stars around the celestial pole that are "circumpolar" ... a kind ofmisleading term that's used to indicate that they don't rise or set, they're always up.The angular radius of the circumpolar region (the altitude of the pole in your sky)is equal to your latitude, and it's also the range of azimuth on your northern orsouthern horizon where no stars rise or set.So we're going to say this: Stars can rise or set anywhere on the horizon ... atazimuths from zero to 360 degrees,excepta space either side of the sub-polar point on your horizon (north horizon in the northern hemisphere, south horizon in the southern hemisphere) equal to yourlatitude, on each side.So, in the northern hemisphere, the answer is:All azimuths between (your latitude) and (360 minus your latitude).In the southern hemisphere, the answer is:All azimuths between (zero) and (180 minus your latitude), or between (180 plus your latitude) and (360).==========================================Epilogue:Looking back over this presentation, the same contributor is suddenlyovercome by a deep conviction that it's baloney. But I'm tired. MaybeI'll come back and fix it. In the meantime, don't use it on a bar bet.
The sun rises in the east.
Approximately 50% of the stars visible from Earth can be seen from the equator, as this is the point on Earth where the greatest number of stars can be observed in either hemisphere. The other 50% of stars would be visible from the opposite hemisphere.
The stars do not appear to change position with respect to each other very quickly from our perspective. All the stars are in motion, so they DO change position with respect to us, but so slowly we cannot really tell by the unaided eye. However, as earth drifts around the sun, different groups of stars swing into position. This is because we see one set of stars during the night at the beginning of winter, and a different set of stars at the beginning of night during the summer. The summer stars were all hid behind the sun during the winter, and vice versa. In the northern hemisphere, we always see the pole star (the north star). The further north you go, the higher the pole star becomes in the sky. At the north pole itself, you pretty much see only the same stars half the year (the other half of the year is day). The same is true for the south pole. Only at the equator, between the tropic of cancer and the tropic of Capricorn do half the stars the stars change from one season to the next.
The stars that do not appear to rise or set in the northern hemisphere are the circumpolar stars. They are located near the North Celestial Pole, so they remain visible in the sky throughout the night, appearing to rotate around the pole without rising or setting. Examples of circumpolar stars include Polaris (the North Star) and the stars in the Ursa Major and Ursa Minor constellations.
Over Horizon happened in 1993.
Stars in constellations appear to move across the sky because of the Earth's rotation on its axis. As the Earth rotates, different stars come into view while others disappear over the horizon. This creates the illusion of movement within constellations.
Stars appear to change position in the night sky due to Earth's rotation. As the Earth moves, different stars come into view while others become hidden below the horizon. This apparent motion is also influenced by the Earth's orbit around the Sun, causing the stars to shift gradually over time.
Over Horizon was created on 1991-04-26.
My goal is just over the horizon.
If you are talking about on a particular night, it is because the Earth is turning. If you are talking about over the course of a few months, that is because the Earth is orbiting the Sun, so we are looking at stars from a different location. Stars themselves are moving in space too, but they are so far away, we don't notice this.
Yes, it is more difficult to notice the westward motion of stars that are high in the sky compared to those near the horizon. This is because stars near the horizon have a longer apparent path along the sky, making their motions more noticeable over time. Stars directly overhead have a shorter apparent path, making their motion less apparent.
It is "loom." There is no word "lume" but if there were, it would be perfect for light from over the horizon.
The sun rose gently over the eastern horizon.
The positions of stars in the sky change over time due to the Earth's rotation and orbit around the Sun. This causes different constellations to be visible at different times of the year. Additionally, as stars have their own motion through the galaxy, their positions relative to each other also change over long periods of time.
I gazed out at the horizon and watched the sun disappear beneath it. The ship sailed toward the horizon, fading into the distance. The mountains on the horizon looked majestic in the evening light.
Like the airliner carries passengers to different places; the ocean liner is a ship, that carries passengers to different places, over the ocean.