A third picture taken by Frans VAN LOO. This one shows the reflection of a gas flame from the same petrochemical plant but from a slightly different location. Picture taken at Itegem, Belgium, on November 4, 1977 at 7:20 pm. Exposure: 11 seconds at f/1.8. Distance between light source and camera: 32.3 km (20.1 miles). Altitude of reflective layer: approximately 3.7 km (2.3 miles).
[© Frans VAN LOO - photo used with permission]