High Altitude Balloon Flight Over Mount Olympus, Greece
July 28, 2012
Photographer: Kostas Tamateas; Kostas's Facebook page
Summary Author: Kostas Tamateas; Jim Foster
This photograph showing Mount Olympus, Greece (center, inland from coast) and the Thermaic Gulf (lower left) was taken from a high altitude balloon on July 19, 2012. The balloon was at an altitude of 21 mi (34 km) over the city of Thessaloniki, Greece when the photo was taken. North is to the right. The project that launched the balloon is called TESLA-IKAROS -- Mission Balkan Space Express I. It was Greece’s first near-space balloon project. The capsule was retrieved intact and it can be reused without any modifications. Note that the black sky (top of photo) results because there's too few air molecules, at altitudes above about 60,000 ft (18,288 m) to effectively scatter sunlight. Thus, the sky is basically colorless.
Photo details: Camera Maker: Canon; Camera Model: Canon PowerShot A490 with custom firmware; Focal Length: 6.6mm; Aperture: f/4.5; Exposure Time: 0.0013 s (1/800); ISO equiv: 80; Exposure Bias: none; Metering Mode: Matrix; White Balance: Auto; Flash Fired: No (enforced); Color Space: sRGB; Software: Paint.NET v3.5.8.