Telescopes

1. Collect light.

2. Bring that light to a single focus.

3. Make far away things look closer

(MAGNIFY).

4. A scale to represent the brightness of

stars, planets, etc.

5. The brightness of the dimmest object

your telescope allows you to see.

FYI: Actress Debra Winger

was the voice of E.T.

6. +6

7. Hale telescope

8. 5 meters

9. 8.3 metersHawaii (Japan)

QuickTime™ and a decompressor

are needed to see this picture.

10. -26.5, -4, -1.5

FYI: Pearls melt in vinegar.

11. The ability of a telescope to

show 2 close stars as distinct points.

12. Refracting telescopes(refractors)

13.

14. The point where all the light

collected by a telescope is

brought.

15. The distance between the lens

and the focal point.

FYI: The average use of a major

league baseball = 7 pitches.

16. Chromatic aberration

17. A 2nd lens is mated to the

objective lens.

18. The size of the portion of the sky

your telescope allows you to see.

19. The longer the focal length, the

lower the magnification.

20. The longer the focal length, the greater the field

of view.

FYI: A duck’s quack DOES

echo.

21. Reflecting telescopes(reflectors)

22. Spherical,parabolic

23. Spherical aberration

24. coma

25. “V”

FYI: Snails can go 3 years

without eating.

26. Add a correcting lens to the “open” end of

the tube.

27.

28.

FYI: There are 293 ways to make

change for a dollar.

29. Alt-azimuth

30. The number of degrees to the east of due north.

31. The number of degrees above

the horizon.

32. equatorial

33. The east/west hour position.

FYI: All of the pawn shop clocks in the movie “Pulp Fiction” are stuck

on 4:20.

34. The number of degrees north or south of the

celestial equator.

35. Gran TelescopioCanarias, Spain

36. 10.4 meters

37. 1 A.U.or93 million miles

38. A light-yearor

5.9 trillion miles

39. A parsec or 3.26 light-years

40. ProximaCentauri,1.295 parsec