According to a new report by NASA, both Pluto and Charon rotate every 6.4 Earth days. NASA has released a series of 10 close-ups of the frosty, faraway world, Pluto, which were taken by the Long Range Reconnaissance Imager (LORRI) and the Ralph/Multispectral Visible Imaging Camera between July 7 and July 13. The New Horizons captured images from Pluto at a distance of just 400, 000 miles away from the planet whereas the images from Charon were taken when the spacecraft reached as close as 6.4 million miles from the planet.
The more distant images from the planet Pluto contributes to the view of 3 o'clock position whereas the far off images from Charon contribute to the view of 9 o'clock position. On analyzing the images taken by the spacecraft during its closest approach on July 14 on Pluto, scientists have been able to gain insight into the heart-shaped top view of Tombaugh Regio slipping out of view.
On Pluto, the New Horizons mission captured the detailed images of what the mission team calls the 'encounter hemisphere' at 6 o'clock position. Scientists said the latest images collected by New Horizons on Pluto will help them understand difference between the encounter hemisphere and the so-called 'far side' hemisphere seen only at lower resolution. On the other hand, scientists found similarity between the encounter hemisphere and the so- called 'far side' hemisphere on Charon.