4. How would you locate the North Star 1
the sky?
1. In which direction does the Earth orbit the
Sun?
2. How long does the Earth take to complete
its orbit?
. How do we match the calendar to the
Earth's orbit?
a) At what time of day is the shadow of a
obelisk shortest?
Answers
Answer:
4) To locate Polaris, all you have to do is to find the Big Dipper pointer stars Dubhe and Merak. These two stars outline the outer part of the Big Dipper's bowl. Simply draw a line from Merak through Dubhe, and go about five times the Merak/Dubhe distance to Polaris. If you can find the Big Dipper, you can find Polaris.
1,) From a vantage point above the north pole of either the Sun or Earth, Earth would appear to revolve in a counterclockwise direction around the Sun. From the same vantage point, both the Earth and the Sun would appear to rotate also in a counterclockwise direction about their respective axes
2) Earth is closer to the sun and revolves around it in about 365 days. Sentences: Earth revolves around the sun in 365 days, 5 hours, 59 minutes and 16 seconds. The time a planet takes to revolve around the sun is called a year.
The calendar year is typically 365 days. However, Earth's orbit around the sun takes slightly longer than this. Because of this difference, every fourth year of our calendar is called a leap year, and has 366 days. The differences arise because it actually takes the Earth around 365.25 days to make a full orbit.
noon;
' The shadow is shortest when the sun is directly in the south, defining local noon. As early as 3500 B.C. the Egyptians began building slender, tapering, four-sided obelisks which served as timepieces.