1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Spherical astronomy

  1. Feb 26, 2013 #1
    This homework is for someone who understands the spherical astronomy and physics. I do not understand subject matter. I can do the basics - I know some kinds of coordinates, but that's all. Please be very patient with me.
    1. The problem statement, all variables and given/known data
    Astronomer observing the sky with a small telescope by hole at the observatory in the middle of dome (lens diameter is much smaller than the diameter of the dome). Calculate the maximum time when astronomer can still observe objects near the celestial equator, without having to rotate the dome. Which side of the world will it be?
    Diameter dome: 5m, width hole: 1m, latitude: +50 °

    2. Relevant equations
    Hmmm... Basic equations of spherical astronomy: sidereal time star = RA + hour angle.

    3. The attempt at a solution
    hour angle = sideral time star - RA
    In addition, however, I do not know, I do not understand those coordinates. How do I determine the two variables?
    Then we would use the equation, if we know that the star culminates between zenith and world pole.
    zenith distance = 180 ° - (latitude + declination)

    However, that's all, I looking at the formula for a long time, but still do not understand. Please help. Thank you.

    And sorry for my bad English.
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Discussions: Spherical astronomy
  1. Astronomy problem (Replies: 13)

  2. Astronomy - Magnitudes (Replies: 2)

  3. Astronomy Problems: (Replies: 2)

  4. Astronomy - Star (Replies: 6)