Midtearm test review questions - Leapyears,,...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
  Leap years, which contain one extra day, are needed in order to correct for the fact that 1 year is not exactly  365 days but about 365.25 days. Lunar eclipses occur about twice per year, when the Moon goes into the shadow of the Earth. On a particular night, the Moon appears more than half-full, and on the following night it appears to be at  quarter moon. What was the phase of the Moon on the first night? waning gibbous. The main reason for the seasonal effects at mid-latitudes on the Earth is the tilt of the spin axis of Earth to its  orbital plane, resulting in a change in the angle of incidence of solar radiation on the Earth's surface as the  Earth orbits around the Sun. When does the first quarter Moon rise, approximately? At midday. What is another name for the Sun's annual path on the celestial sphere? The ecliptic During which phase is the Moon "up" least in daytime? Full Through how many constellations does the Sun move every year? 13 Where do you have to be on Earth to see the south celestial pole at your zenith? At the south pole The length of time it takes the Earth to orbit the Sun is: A year The city of Bristol in England is located to the west of and in the same time zone as London. Astronomical noon  in Bristol, when the Sun is highest in the sky, compared to astronomical noon in London occurs later in time When we watch the nighttime sky, we find that most stars and constellations slowly rise in the east and set in the west. The phrase “diurnal motion” refers to the gradual motion of the constellations from east to west across the sky each night, resultin Why do we see different phases of the Moon? The illuminated half of the Moon becomes more or less visible from Earth as the M The full Moon always occurs when the Moon is farther from the Sun than the Earth  Where would you have to be to see the south celestial pole on your horizon? on the equator As the Earth rotates, the apparent motion of the pole star, Polaris, in a period of a day is a small circle with a  radius of less than 1 ° .
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
For an observer at a fixed location on the Earth, the angle between the north celestial pole and an observer's  horizon depends on the observers latitude (north or south of the equator).
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern