By Andy Dungan | Near Cotopaxi, Colorado USA

By Frank Lu | Arlington, Texas, USA

By Hassan Dadashi.Arani | Esfahan province. Iran

By Mario Rana | Hampton, Virginia

By Patricio Leon | Santiago, Chile

By T Deo | Dallas, TX

By Rui Santos | Douro Valleys, Portugal

By Bill Kozar | Taylorsville, Indiana. USA

By Lorraine Boyd | Delmar, NY

By Hassan Dadashi.Arani | Esfahan province. Iran

By Filipp Romanov | Yuzhno-Morskoy, Nakhodka, Russia

By Victor Rogus | Sedona, Arizona, USA

By Filipp Romanov | Utah Desert Remote Observatory at Great Basin Desert, Beryl Junction, Utah, USA

By Andy Dungan | Near Cotopaxi, Colorado USA

By Karl Diefenderfer | Quakertown Pa

By Maria Cruz | South China, Maine