2 "Ficheiro:Purple_Sky_at_Night-_Astronomer’s_Delight!_(iotw2012a).jpg".

Ficheiro:Purple Sky at Night- Astronomer’s Delight! (iotw2012a).jpg

English This scene shows an arresting purple sky streaked with star trails over Cerro Pachón, the site of the Gemini South telescope (right) and the 4...

Ficheiro:Purple Sky at Night- Astronomer’s Delight! (iotw2012a).tiff

English This scene shows an arresting purple sky streaked with star trails over Cerro Pachón, the site of the Gemini South telescope (right) and the 4...

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