1. Enjoying the Night Sky

2. Horizon and Zenith

3. Stars and constellations

11. Zodiac Constellations

12. Astrophotography All you need: 35 mm Camera on tripod Cable shutter release F-stop on smallest number Focus to infinity Fast film (at least 400 speed) Aim the camera, and hold shutter open for 10-30 seconds for constellations As long as you want for star-trails

13. Star-trails

14. Circumpolar star-trails

15. Why the trails?

16. Sagitarrius and Milky Way: 30 second exposure

17. Wandering Stars: the planets The ancients knew of seven objects that wandered through the stars (the Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn). They called these wanders the “planets” (from the Greek for wanderer). All of these objects are visible with the naked eye.

19. The Moon

20. Earth and Moon compared

21. Phases of the Moon

22. Eclipses of the Moon A lunar eclipse occurs when the Moon passes into the shadow of the Earth. The lunar eclipse is visible to everyone on the night side of the Earth. Aristotle (384-322 B.C.) used the apparent shape of the Earth’s shadow to show that the Earth is a sphere.

23. Lunar Eclipse

25. Lunar Eclipse Showing Earth’s Shadow

26. Lunar eclipses:

27. Spacecraft (satellites) International Space Station http://www.heavens-above.com