> For the complete documentation index, see [llms.txt](https://badges.prepscouts.lk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://badges.prepscouts.lk/senior-scouts/explorer-group-h/explorer-group/astronomer.md).

# Astronomer

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Objective: - Demonstrate the interest and skill in astronomy, and about the stars & planets and how they are scientifically observed
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![](/files/-MYfqPT9-5SAF8u--vy1)

1. Demonstrate with diagrams, drawings or models, a general knowledge of the nature of the stars and planets, and their apparent and actual movements. Understand the cause of the seasons, eclipses, etc. 
2. Be able to describe in generally the bodies of the Solar system, Sun, Moon, (With an explanation of its phases) Planets, Satellites, Comets, Meteoroids, and minor Planets. 
3. Recognize the main constellations that can be seen to the naked eye from Sri Lanka. 
4. Understand the principles of telescope, and spectroscopes. Discuss the work carried in an observatory. Have a basic understanding of the world’s leading observatories. 
5. Keep an observer’s diary for a period of not less than two months, with a planned progamme included, such as, estimating the magnitude of a variable star, estimating time from the apparent movement of the constellations.