Such a clear image has usually been rare.
Tim had to compensate for the Space motion Station. Tim had time to set up his camera. Whenever tracking city and keeping it in viewfinder, judging speed required by trial and error, Tim kept a steady hand for the 1/60 of a second that shutter was open. Completely briefly passes over specific points of Earth and its ground track moves along on each ’90minute’ orbit -so Tim would not get another chance to image London during his sixmonth stay in space for Principia mission, the Space Station flies at 28 800 km/h. This solely adds another complexity to nighttime astronaut photography, the orbital outpost has to travel at this speed to keep it in orbit.