Astronomy › Section B · Observing the sky › Topic B.1
The sky above
Spend a few clear nights outdoors and the sky turns out to follow precise rules: everything wheels around a fixed point, the Sun creeps along a yearly path, and a handful of bright wanderers drift among the stars. These patterns were the raw material of all early astronomy.
In this topic
- The dome of the sky
- The celestial sphere
- Celestial poles and the celestial equator
- What you see depends on your latitude
- Worked example: what stays up all night?
- Measuring the sky in angles
- The Sun's yearly path
- Fixed stars and wanderers
- Worked example: timing the turning sky
- Constellations
- Common mistakes to avoid
- Key takeaways
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