A Selfie from the Other Side of the Sun.

[NASA]

STEREO-A is now on the other side of the Sun, over 290 million km (180 million miles) away (See Where is STEREO? (http://stereo-ssc.nascom.nasa.gov/where.shtml) ). Recently, a new planet has appeared in the field of view of it sun-pointed instruments: Earth. You can see Earth and Mercury in this movie from STEREO Ahead's SECCHI Cor2 coronagraph. The location of the Sun (hidden by a disk so we can see its faint outer atmosphere) is shown with the white circle. The horizontal lines through the two planets are due to saturation effects in the detector - the planets are brighter than the solar features the cameras were designed for.





More... (http://secchi.nrl.navy.mil/movies/cor2a_20150128.mov)