When we watch the night sky, stars apparently move around Polaris at North; but It’s an optical effect. Earth’s rotation movement is faster than we think,about 1,000 miles per hour. This ruined castle is located in Serra, a village close to Valencia, Spain, and was built up in XI century by the Arabs. This startrail belongs to a serie of an ongoing project from last 4 years, in different places of the planet. This picture has been stacked from a 1 h TimeLapse, 390 pics ISO 1600, f3.2, 10 s. The Foreground and castle are a blending from a picture with ISO 1600, f4, 30 seg.