By Guillermo Abramson | Bariloche, Argentina

By Ronna Harlow | Mission, Kansas USA

By Patricio Leon | Santiago, Chile

By Donna Kelly | Ft.Worth, Texas USA

By George Tzellos | Mesogeia, Greece

By Bree Martin | Riverside California USA

By John Ashley | Tumacacori, Arizona, USA

By Hassan Dadashi . Arani | Esfahan province. Iran

By Andy Dungan | Near Cotopaxi, CO USA

By David Perry | San Antonio, Texas, USA

By Abhijit Patil | Lick Observatory, Mt. Hamilton, CA, USA

By Gontran Eleizalde | Caracas - Venezuela

By Ross Stone | Lone Pine, CA, USA

By Filipp Romanov | Yuzhno-Morskoy, Nakhodka, Russia

By Abhinav Deka | Mangaldoi, Darrang, Assam

By Paul C. Peh | Honolulu, HI, USA