9 May 2016

Little Mercury a black dot as it crosses vast face of sun

The transit of Mercury, left, in front of the Sun is seen from St.Petersburg, Russia, Monday, May 9, 2016. The photo was taken through a hydrogen-alpha (H-alpha) narrow spectrum solar telescope that permits examination of the sun's protuberances and showing the surface activity.
For the first time in 10 years, Mercury passed directly between the Earth and sun on Monday, resembling a black dot against the vast, glowing face of our star.
Many stargazers turned to the Internet as NASA provided close-to-real-time images of the 7½-hour trek, courtesy of the Solar Dynamics Observatory.
Although the solar system's small, innermost planet appeared to be trudging along, it actually was zooming past the sun at 106,000 mph.