Equatorial System and Star Charts amine the rectangular star maps, It represents

Question

Equatorial System and Star Charts amine the rectangular star maps, It represents a portion of the celestial sphere as a rectangle. bistortions occur when a 3D sphere is drawn as a flat rectangle. The distortions are severe near the top and bottom of the map. The distortion is quite workable for most purposes in the center two-thirds of the map. It's similar to the rectangular north and south poles, but work fine for the major populated areas closer toward the equator maps of the Earth that grossly distort the landmasses near the running horizontally through the center of the star map represents the celestial equator. Right Ascension (RA) scale at the bottom of the map. Declination (Dec) is measured in degrees perpendicular to the celestial equator. The scales are on the left and right edges of the map. is measured along this line from right to left in units of hours and minutes. Notice the RA Print out a copy of the star chart 1. Find on the map the "topmost" star of the constellation Libra. a. What is ts Right Ascension in hours and minutes? 15m b. What is its Declination in degrees? The sun's location at the first day of each season in the northern hemisphere is given in the table below. Plot its position on the rectangular star map for each date and label it with the 2. 12h 0m 0° Autumn Winter 23.5° Oh 0m or 24h 0m 6h Om Summer 23.5 Fill in the table below with the constellation closest to the sun's position (that is, the constellation the sun is 'in'). 3. Season Autumn Winter ro Spring Summer

Explanation / Answer

The orbits of the planets are all more or less in the same plane (called the ecliptic and defined by the plane of the Earth's orbit)

The Moon's orbit about the Earth lies in a plane which is tilted by about 5.15° with respect to the plane of the Earth's orbit about the Sun

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