Course Hero Logo

astr301w20_02_SkyFromEarth.pdf - The Sky as Seen from Earth...

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 1 - 8 out of 26 pages.

The Sky as Seen from EarthAstronomy 301
2We see the sky as itlooks, not as itis.
Why are we interested in the sky seen from Earth?How did we find the planets?
How do you determine what the Solar Systems looks like(in 3D) based on observations?
Also: how do the positions on the sky of the Sun andMoon change? What are the visible effects of this?3
Local Sky – the Dome Over Your Head4
5Meridian – line passingthrough the zenith andconnecting N and S onhorizonZenith – the point directlyoverheadMeridianHorizon – allpoints 90ofrom zenith
Local Sky – Horizon Coordinates6Altitude: How far (angle) fromthe horizon an object is located.Range: -90oto +90o; positiveabove, negative belowAzimuth: Where around the360ohorizon is the object.Measured from NORTH.Range: 0-360o, increasing east.
Celestial SphereImaginary sphere surroundingthe Earth.

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 26 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Fall
Professor
Keller
Tags
Celestial coordinate system, circumpolar stars

Newly uploaded documents

Show More

Newly uploaded documents

Show More

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture