First session of astronomy and philosophy course in Lycée Polyvalent Chaplin Becquerel

1. How to explore the sky.

2. The daytime skyThe SunBe careful, we can not look directly at the sun, we should always protect ourselves with a matched filter. How to explore the sky.

3. How to explore the sky. The daytime skyThe Sun - The observation of his shadow help to determine its position in the sky. Photo: P Jeanjacquot

4. How to explore the sky. The daytime skyThe Sun Photos: P Jeanjacquot

5. How to explore the sky. The daytime skyThe Sun -The observation by projection allows us to observe and study sunspots.To measure their relative motion and to deduce the speed of rotation of the Sun Image fromSolarscope

6. How to explore the sky. The daytime skyThe Sun - The observation with selective filters allows us to see the Sun's surface at different altitudes to visualize the flares and the cells on the surface of the Sun. Photo: P Jeanjacquot for Astro-philo

7. How to explore the sky. The daytime skyThe Sun The observation is also space, a large number of satellites monitoring the Sun.

8. How to explore the sky. Le ciel diurne Le Soleil

9. A la découverte du Ciel! The daytime sky: Example with satellites: SOHO website

10. A la découverte du Ciel! The daytime sky: Example with satellites: SDO website

11. How to explore the sky. The daytime sky: The Moon This picturewastookjustbefore the sunset. Photo P Jeanjacquot

12. How to explore the sky. The daytime sky: The blue sky This color is due to Rayleigh scattering. The molecules that make up the upper atmosphere scatter blue light.

13. How to explore the sky. The daytime sky: The bluesky Wecanseethiseffectwhen a white light cross a glass of dilutedmilk. The milkscatterblue light and the beamis orange whenitget out of the milk ( like the sunset light)

14. How to explore the sky. The night sky The Stars Albirédo : étoile double Photos: P Jeanjacquot- option astro-philo The colors of the stars (spectra) tell us about their nature (temperature, composition) Stars, Cassiopee, Perseus Photos: P Jeanjacquot- option astro-philo

15. How to explore the sky. The night sky The moon Observation may be on the surface of the Moon (craters and geological) or phases of the moon. Photos: P Jeanjacquot

16. How to explore the sky. The night sky How to find the planets. Astronomical Clock in the Forbidden City in Beijing. We can see the planets on a plane around the Sun (photo P Jeanjacquot) The planets are on a plane called the ecliptic.

17. How to explore the sky. The night sky How to find the planets The planets are on a plane called the ecliptic. They are easily spotted in the sky because they are rather on the south side on a curve (projection of the ecliptic plane).

18. How to explore the sky. The night sky The planets It is easy to produce images of planets with a telescope and a webcam Photos: P Jeanjacquot- option astro-philo

19. How to explore the sky. The night sky The MilkyWay Mauna Kea Milky Way Panorama Credit & Copyright: Wally Pacholka (TWAN) Milky way from the Great North, Photo P Jeanjacquot.

20. How to explore the sky. The night sky Other galaxies M31 With the schooltelescope (C8, with HEQ5 mount and canon 450D camera M31 AndromedeGalaxy (in the redoval) as wecanseewithnakedeyesnearCassiopeia constellation (in the yellowoval) Photos : P Jeanjacquot- option astro-philo

21. How to explore the sky. The night sky Other galaxies 3. With the HawaiFaulkestelescope 2. With the schooltelescope (C8, with HEQ5 mount and canon 450D camera 1. From Hubble SpaceTelescope Photos 2-3: P Jeanjacquot- option astro-philo M51 The Whirlpool Galaxy

22. A la découverte du Ciel! The night sky Birth and death of the stars M57 the Ring Nebula is the remnant of a star that exploded at the end of life. M42 the nebula of Orion is a stellar nursery Photos: P Jeanjacquot option astro-philo

23. How to explore the sky. The night sky Star clusters The double cluster in Perseus is an open cluster. M 13 Hercules Globular Cluster Photos: P Jeanjacquot- option astro-philo

24. How to explore the sky. The night sky The comets Holmes comet Photos: P Jeanjacquot- option astro-philo

25. How to explore the sky. Night sky The meteorits APOD: Meteors Between Stars and Clouds Credit & Copyright: Pierre Martin & Michael F. Vasseur

26. How to explore the sky. Night sky The artificial satellites Photo: P Jeanjacquot

27. How to explore the sky. Night sky The Earthrotates! Star Trails P Jeanjacquot Trail of 50 pictures with StarMax software

28. How to explore the sky. How to find objects in the sky? The astrolabe Photos: P Jeanjacquot- option astro-philo

29. How to explore the sky. Comment trouver les objets dans le ciel? The star finder Copyright: SRAC

30. How to explore the sky. How to find objects in the sky? The sofwares: we use Stellarium (freeware)

31. How to explore the sky. How to find objects in the sky? Wecan use the maps in the astronomy magazines

32. How to explore the sky. How to find objects in the sky? Use the celestialcoordinates system: Altitude and Azimuth

33. How to explore the sky. How to find objects in the sky? Use the celestialcoordinates system: Right ascension and declination

34. How to explore the sky. How to observe Wecan observe withnakedeyesourwithdifferentequipments. Images for SkyWatcher, Meade, Celestron

35. How to explore the sky. How to observe? Wecan use data bases. http://cdsweb.u-strasbg.fr/ http://www.us-vo.org/http://archive.eso.org/eso/eso_archive_main.html

36. How to explore the sky. How to observe? Remotetelescopes http://faulkes-telescope.com/

37. How to explore the sky. How to observe? Image processing M57 Processingwith freewares(Iris, imageJ, registax…) Cat eyenebula NGC6543 Photos: P Jeanjacquot- option astro-philo with the Faulkestelescopes

38. How to explore the sky. The skycanalsobe observe with not visible lights