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THE ROYAL ASTRONOMICAL SOCIETY OF CANADA STANDING COMMITTEE ON OBSERVATIONAL ACTIVITIES Bulletin No. 7 LUNAR SECTION Lunar Training Program: This bulletin introduces the Lunar Training Program, a course for the beginner who needs guidance in becoming familiar with the more prominent features on the moon. Attached are forms which should assist the newcomer in Lunar crater identification. An outline of the lunar disk showing craters and other features is supplied. By reference to a lunar map, the observer should be able to identify all of the craters, clefts, mountain ranges and mare. These have been numbered consecutively from South to North in successive segments of longitude, to assist the observer in identifying these in sequence under optimum lighting conditions. In the right hand column of "Astronomical Phenomena Month by Month" (OBSERVER'S HANDBOOK 1967, p.33) nay be found the selenographic colongitude for any given date. The north- south lines on the lunar chart char selected values of colongitude (120° , 145° etc.) for both sunrise and sunset, which nay be interpolated to predict appropriate solar lighting for any selected area of the moon. A more complete explanation of colongitude is given either in Lunar Information Bulletin No.2, or on page 61 of the OBSERVER'S HANDBOOK. After completing the identification of the numbered features, the observer should then plot on this chart an equal number of craters of his am selection, With the aid of a Lunar map, these should be identified and listed. Once the observer has become familiar with the general topography of the moon, a study of individual craters can be started. For this training course, the following have been selected: Petavius Aristotles Bullialdus Posidonius Plato Gassendi If the study is confined to these selected craters, progress can be compared with that of other observers in the group. The trainee should make three drawings of each of the six craters on different nights to appreciate fully the changing aspects a lunar feature exhibits under differing lighting conditions. The enclosed LC-1 form has been designed for recording observational drawings of lunar features. Instructions may be found on the reverse side. As the representative of each Centre in Lunar observing may wish to check the observer's results recorded on the Lunar Chart, the correct names in numerical sequence of the features as preplotted on this form have been listed on the next page. A supply of these forms is available from the National Co-ordinator on request. GENERAL ASSEMBLY Individuals planning to submit lunar drawings or other material in this discipline for display at the General Assembly in Montreal are requested to advise the President of your Centre. All material will be attractively displayed and returned at the close of the meetings. The deadline for these submissions is May 1, 1967. (Members unattached to a Centre should advise the National Co-ordinator.)
Lunar Section, Bulletin No. 7 -2- C R A T E R S 1. Janssen 28. Maginus 2. Fabricius 29. Tycho 3. Metius 30. Purbach 4. Potavius 31. Thebit 5. Langrenus 32. Arzachel 6. Macrobius 33. Alphonsus 7. Cleomedes 34. Ptolemaeus 8. Atlas 35. Autolycus 9. Hercules 36. Aristillus 10. Piccolanini 37. Cassini 11. Fracastorius 38. Archimedes 12. Posidonius 39. Plato 13. Cuvier 40. Pitatus 14. Stofler 41. Parry 15. Catharina 42. Copernicus 16. Cyrillus 43. Eratosthenes 17. Theophilus 44. Tinocharis 18. Plinius 45. Longomontanus 19. Julius Caesar 46. Bullialdus 20. Eudoxus 47. Reinhold 21. Aristoteles 48. Shickard 22. Aliacensis 49. Gassendi 23. Werner 50. Kepler 24. Albategnius 51. Aristarchus 25. Hipparchus 52. Grimaldi 26. Manilius 53. Otto Struve 27. Clavius 54. Pythagorus M A R I A A - Mare Foecunditatus J - Mare Nubitin B - Mare Crisium K - Sinus Medii C - Mare Mactarts L - Sinus Aestum D - Mare Tranquillitatis M - Mare Vaporum E - Mare Serenitatis N - Mare Humboldtianum F - Mare Imbrium P - Lacus Scioniorum G - Mare Frigoris Q - Lacus Mortis H - Oceanus Procellarum R - Mare Undarum I - Mare Humorum S - Mare Smyth O T H E R F E A T U R E S a - Hyginus Cleft f - Apenine Mountains b - Rheita Valley g - Serpentine Valley c - Carpathian Mountains h - Altai Mountains d - Alpine Valley i - Riphaeus Mountains e - Caucasus Mountains j - Straight Wall Archie L. Ostrander, National Lunar Co-ordinator, Standing Committee on Observational Activities, 75 Rabbit Lane, 28 February, 1967. Islington, Ontario.
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Lunar Section Bulletin No. 7