A heliograph at a meteorology station of the Darwin Natural Reserve.
- Categories: Science & Technology
- Location: Russia
- Event date: 01.07.1979
- Date published: 04.02.2010
- Author: Vyacheslav Bobkov
- Source: Sputnik
- Credit: Sputnik
- Original: DP79-3335, 35 mm slide
- Media: JPEG, 5309x3544px, 4.4Mb