Solar System Debris

Answers

COMETS IN GENERAL

1. atmosphere, planets (solar system), orbital motions, sun

2. The object which is ultimately responsible for the cometary shape is very small, while
the comet itself is huge, but very tenuous.

3. Jupiter, Saturn, Uranus, Neptune

4. Oort

5. stars, sun

6. spherical

7. long, short

8. planets, direction

9. ejected, counterclockwise

MORPHOLOGY OF COMETS

10. snowball, ice, dust, methane, ammonia, carbon dioxide

11. nucleus, 5-25 miles

12. sublime, coma

13. plasma, dust, head

14. hydrogen, water

15. ultraviolet, fluoresce

16. ion (plasma), STRAIGHT, BLUE

17. gases, dust, scattered, CURVED, YELLOW

18. scattered, reflected

19. ion

20. AWAY, head, tail, tail, head

DISCOVERING A COMET

21. 20-30, WIDE FIELD, AMATEUR, sun, sunrise, sunset (in dark skies)

22. individual (s), THREE

The whole comet designation system was revamped starting in the beginning of 1995. The main points
of the new scheme are:

1. The provisional designation system will more closely match the designation system for minor planets. The first
    comet discovered in the first half of 1995 Jan. will be designated 1995 A1, the second 1995 A2, etc.
2. Long-period comets and one-apparition periodic comets will receive only a provisional designations
3. Upon recovery at a second apparition (or following through aphelion) periodic comets will receive a sequential
    number. E.g., P/Halley will be 1P.
4. Routine recoveries of periodic comets will not receive provisional designations.
5. The nature of the comet orbit will be indicated by a prefix: P/ for periodic comets, C/ for long-periodic comets,
    D/ for defunct comets (e.g., 1993e) and X/ for uncertain comets. Additionally, A/ will be used to indicate that
    the object is a minor planet.
6. Comets will continue to be named in general terms for their discoverers ensuring fairness and simplicity.
7. Provisional comet designations are assigned by the CBAT. Permanent comet numbers are assigned by the Minor
    Planet Center.
8. The new scheme will be backdated, so old comets will receive new-style designations.

23. orbit

BRIGHTNESS OF A COMET

24. magnitude

25. 2.51, NEGATIVE

26. fluorescence, scattering

27. earth, 4

28. sun, 4, 64

29. bright

30. asteroid

METEORS

31. dust, gravitational, spiral

32. meteor (shooting star)

33. IS NOT

34. ionize (fluoresce)

35. 40-70

36. comet, meteor showers

37. radiant, parallel, diverge

38. fireball (bolide)

39. meteoroid, asteroid

40. meteorites, comets, asteroid belt, Mars, Jupiter

METEORITES

41. irons, stony-irons, stones

42. stones, silicate, chondrules

43. iron (siderites), are easy to find with metal detectors and weather more slowly

44. differentiated

45. stony-irons

46. 4.5 billion (5 billion)

47. composition, mantles

48. FULLY, MILES PER SECOND

49. crater, BIGGER THAN, Heat

50. lower, higher

51. Meteor Crater, IMPROPERLY

Note: An asterisk indicates a more difficult concept.