Lincoln
Hills Astronomy Group
"Navigation by the Stars Using the Sextant"
December
2007
John Roumbanis presenting"Navigation by the Stars Using the Sextant"
 |
 |
| John
Roumbanis presenting "Navigation by the Stars Using the Sextant" |
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |