A researcher next to a photo heliograph at the Kislovodsk astronomical station of the Main (Pulkovo) observatory of the Russian Academy of Sciences.
- Categories: Science & Technology
- Location: Republic of Karachaevo-Cherkessia, Russia
- Event date: 05.08.2017
- Date published: 05.08.2017
- Author: Denis Abramov
- Source: Sputnik
- Credit: Sputnik
- Original: Digital
- Media: JPEG, 5026x3351px, 1.1Mb