By Tom Marsala | Mojave Desert, CA

By Patty Fine | Springfield, Illinois, USA

By Patty Fine | Springfield, Illinois, USA

By Patty Fine | Springfield, Illinois, USA

By Dr Ski | 9.3°N, 123.3°E

By Dr Ski | 9.3°N, 123.3°E

By Dr Ski | Valencia Observatory Garden, Philippines

By John van Nerum | Capelle aan den Ijssel

By Jonathan Razo | Stanford University

By Richard Barbetta | Vernon, NJ USA

By Kandaswamy Natarajan | Chennai TamilNadu India

By Jonathan Razo | Stanford University

By Raul Cortes | Monterrey, Mexico.

By Dr Ski | 9.3°N, 123.3°E

By Raul Cortes | Monterrey, Mexico.

By Dr Ski | Valencia Observatory Garden, Philippines