Continuous observations of solar activity are made possible by a global network of NISP telescopes. At any given time, between 1 and 4 of our telescopes are observing the Sun simultaneously from different locations on earth. A parallax effect is observed by combining pairs of simultaneous observations. Early astronomers used the parallax effect to calculate the earth-sun distance.
During the Venus Transit, we observed simultaneous H-Alpha wavelength solar images from Big Bear and Mauna Loa telescope sites, then merged the coincident image pairs. These resulting stereo images are equivalent to having one eye in California, and the other eye in Hawaii, giving a 3D effect.
This image and movie can be viewed with standard red/cyan 3D glasses. For best results, try viewing with your head tilted slightly right, and give your eyes