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3 names of where you would find an acute angle is: Triangle, cone and a star.
Stars do not have arms.
The device that astronomers use to find the angle between the horizon and stars in the sky is called a sextant.
If a star's azimuth is 90 degrees, it is located directly east on the horizon. An altitude of 45 degrees means that the star is positioned halfway up in the sky, forming a right angle with the horizon. Therefore, this star would be visible in the eastern sky at an angle that is halfway between the horizon and the zenith.
The sextant.
The Meridian Star was created in 1898.
That depends on the date, and on the time of day. Once a day, this star - or any other star for that matter - will cross the meridian. Or twice a day, but the other crossing is usually below the horizon.
Declination, which is measured as an angle, north is positive and south is negative. The declination of a star etc. is also the latitude at which the star passes overhead.
The amount of time between successive passes of the star Sirius across the meridian is 23 hrs 56 minutes.
The Hour of the Star was created in 1977.
The ISBN of The Hour of the Star is 978-0811219495.
Hour of the Star was created in 1985-02.
The duration of Hour of the Star is 1.6 hours.
If star A is closer to us than star B, then A's parallax angle is larger than B's. Parallax angle is inversely related to distance; the closer an object is, the greater the angle observed as it moves against the background of more distant stars. Therefore, star A's parallax angle will be greater than that of star B.
Between two points - like a star and Earth - you would have a line, not an angle. Angles may be indicated between two stars - that is, the angle would be star 1 - Earth - star 2.
If you are crossing the prime meridian, your longitude is 0 degrees. At an altitude of Polaris (the North Star) of 50 degrees, you would be located at a latitude of approximately 50 degrees North. This position places you in a part of the Northern Hemisphere, likely somewhere in Europe, northern Asia, or parts of Canada.
Star Trek Deep Space Nine - 1993 Meridian 3-8 was released on: USA: 14 November 1994