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Den nære astronomi

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by

Signe Kjær Hansen

on 2 November 2015

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Transcript of Den nære astronomi

Orientering på aftenhimlen
3000 stjerner
Stjernernes bevægelse
Polarstjernen
En omdrejning = et døgn
Tidevand
Tidevand --> Ukendt
Galilei 1632:
Newtons teori
Højvande og lavvande
Kometer
Den nære astronomi
Stjernebilleder
Karlsvognen
Hvorfor har vi stjernebilleder?
Tidens gang
Planeter
Jorden
- "blå planet"
Månen
- Nymåne
- Tiltagende
- Fuldmåne
- Aftagende
Solen
- Solformørkelse
Solsystemet
- Skudår
Dag & Nat
Jordens hældning
Varation i dagtimerne, årstider ovs.
Jævndøgn
Sommer- og vintersolhverv
Årstiderne
Komet
Fortiden --> Dårlig varsel
Anderledes end andet på nattehimlen

Mette Bak, Signe, Amalia & Emma Halkjær
Full transcript