The Aurora (2014)

A quick tour of the Solar System and a description of the Sun's connection to the Earth - and the nature and origins of the aurora.

Transcript

2. The  Solar  System  and   The  Aurora   ! Dr.  Robert  Simpson     Oxford  University
7. Peppercorn
8. 6,300,000,000  :  1
9. 6,300,000,000  :  1
10. Pinhead Pinhead Peppercorn Peppercorn Walnut Hazelnut Peanut Peanut 6,300,000,000  :  1
12. 139 m
13. 71  m
14. 71  m
15. 71  m
34. Carrington  Event September  1st,  1859 Aurora  seen  all  over  the  world   Sparks  flew  from  telegraph  poles
35. Proton  Flux 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 Major  Solar  Flare  IntensiXes
36. Proton  Flux 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 APOLLO 11 12 14 15 16 17 Major  Solar  Flare  IntensiXes
37. Proton  Flux 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 APOLLO 11 12 14 15 16 17 Sickness Death Major  Solar  Flare  IntensiXes
38. E=mc2
39. Sun  converts  Hydrogen  into  Helium   ! 0.7%  of  the  mass  turns  into  energy   ! 4  million  tonnes  are  lost  per  second       E=  mc2
41. 3.6× 1026 W
43. THE  SOLAR  WIND Protons  and  electrons   ! 400  km/s  (1.5  million  km/hr)   ! 1.3  ×  1036  parXcles/s     ! 6.7  ×  109  tonnes/hr      
65. Oxygen Nitrogen
66. Oxygen Nitrogen
67. Oxygen Oxygen Oxygen Oxygen Nitrogen
68. Oxygen Oxygen Nitrogen Nitrogen Oxygen Oxygen
69. Oxygen Oxygen Nitrogen Nitrogen Oxygen Oxygen Nitrogen
78. Huge,  empty  and  dominated  by  the  Sun.   If  the  earth  is  a  peppercorn,  Jupiter  is  a  walnut  and   the  Sun  is  a  beach  ball.   It  is  oben  what  we  cannot  see  (magneXsm,  UV)  that   is  important  in  astronomy. THE  SOLAR  SYSTEM
79. Billions  of  tonnes  of  material  moving  at  millions  of   miles  per  hour!   Charged  parXcles  excite  molecules  in  the   atmosphere  to  create  the  colours.   An  auroral  oval  that  shrinks  and  grows  with  the  solar   wind. THE  AURORA
83. Today Tomorrow
84. •http://www.gi.alaska.edu/AuroraForecast/ •http://soho.esac.esa.int/data/ •http://polaris.nipr.ac.jp/~acaurora/aurora/Tromso/
85. rob@zooniverse.org   @orbiXngfrog   Aurora  photos!