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Basic Astronomy Questions
1. What are winter constellations and summer constellations? Can examples of constellations be listed?
2. Do the sun rotate or it is fixed?
3. For celestial sphere model, we will say the stars, the Earth and the sun fixed or rotate respectively?
- Prof. PhysicsLv 71 decade agoFavorite Answer
1. The winter constellations refers to the constellations that rises from the sky at midnight in winter. It is similar for the summer constellations.
Winter constellations: Gemini,
Summer constellations: Sagittarius,
2. The Sun does rotate.
3. For the celestial sphere model, the Earth is fixed and is located in the centre of the celestial sphere.
The Sun moves on the ecliptic.
Most of the stars are fixed, a few of them move.Source(s): Physics king