For questions 1-3-consider the following diagram Assume this diagram represents

Question

For questions 1-3-consider the following diagram Assume this diagram represents what you would see in the sky (assuming you could see the sun and stars in the daytime) at 12 noon from the LTU campus on onrg the Fall Equinox Comorrow! 09/22/18). EAST SOUTH WEST 1) Which constellation (A, B. C, D, E) rose on the Eastern Horizon at sunrise (or did they all rise at the same time)- explain? 2) Since this is the Equinox (in the diagram)- roughly what time of day will Scorpius (D) set in the West-explain? 3) Roughly, what time of day did the first of those 5 Constellations rise on the Easterm horizon- explain? 4) Multiple Choice (MC)- The Sun's path in the sky, as viewed from Lawrence Tech, is highest on A) the day when Earth is closest to the Sun. B) the winter solstice D) the summer solstice. C) the spring and fall equinoxes. 5) MC- Why do the patterns of the stars in our sky look the same from year to year? A) Although these stars are moving, they move so slowly (typically about the speed of a snail) that their motion is not noticeable B) These stars are not moving at all. C) Although these stars move in space quite fast by human standards, they are so far away that it would take thousat of years for their motion to be noticeable to the eye. D) Although these stars move quite fast as they orbit around the Milky Way Galaxy, they all move together so they change their relative positions. 6) MC- What is a circumpolar star? A) A star that is visible from the Arctic or Antarctic circles B) a star that makes a daily circle around the celestial sphere C) a star that is close to the north celestial pole D) a star that is close to the south celestial pole E) a star that always remains above your horizon

Explanation / Answer

1. Sagittarius will be on the eastern horizon at sunrise on fall equinox. The figure is given at noon time when The Sagittarius is on the south. Now the sun rotates from west to east. So at the morning time, the position of Sagittarius will be on the eastern horizon.

2. at noon the Scorpius is on the south-west horizon, so the position of the Scorpius is on the west when the sun will be on the southeastern side that will be before the noon around 9 am.

3. at 6 am as per the figure.

4. on the summer solstice.

5. these stars are not moving at all.

6. A circumpolar star is a star which always remains above your horizon.

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