Watch LIVE: 2016 Mercury Transit On May 9, 2016.

On Monday, May 9th, at 4:00 AM PDT | 7:00 AM EDT | 11:00 UTC (See International Times), Slooh will host a special webcast of the rare Transit of Mercury live from its global network of observatories. Viewers will have the opportunity to watch Mercury glide across the face of the Sun as it rises across the United States on Monday morning. Slooh’s coverage will feature live feeds of the seven and a half hour event from Europe, the Middle East and the United States, anchored by a new solar telescope recently installed at Slooh’s flagship observatory at the Institute of Astrophysics of the Canary Islands.


2016 Mercury Transit


On May 9, 2016, SDO will watch the planet Mercury move across the face of the Sun.

2016 Mercury Transit

The latest Mercurius transit was in 2006 (Reuters)

Astronomers are gearing up for a relatively rare event: a Mercury transit. Todat the small planet will move between the sun and the earth.
For about 9 hours starting at 1030 UTC (6:30 a.m. ET), SDO will watch a small black dot move across the Sun. The black dot won’t be a sunspot, it will be the planet Mercury making a rare transit of the Sun.

Mercury is closest to the sun and all the planets turn in 88 days around our star. Due to its elliptical orbit it only happens thirteen times per century that the Earth, the Sun and Mercury are in a row.

The last time Mercury moved along the sun , was in 2006. On November 11 2019 it will happen again and then we have to wait until 2032.


In the Netherlands all transition will be shown.. At 13:12 hours Dutch time the planet begins its journey and 7.5 hours later he has crossed the entire sun.

Astronomers warn that it may be dangerous to follow the phenomenon. You will not be able to see the small planet with the naked eye  and those who look at the sun with a telescope  may suffer severe eye damage.

It is better to put a special solar filter on the telescope or  to project the sunlight through the telescope at a piece of paper. Incidentally, also that is not without danger: the eyepiece of the telescope may crack or melt through the concentrated light from the sun.

New solar telescope

Easier it is to follow the natural phenomenon through a special solar telescope of a planetarium. In the Netherlands the Old Observatory in Leiden open today. As can with a new telescope to be viewed a 1 meter large projection of the sun.

Also available on the Internet are live streams, for example through the solar satellite of NASA .

Watch LIVE

The online Slooh Community Observatory will host a live webcast on Monday (May 9) to stream live views of the rare transit of Mercury from 7 a.m. EDT to 2:45 p.m. EDT (1100 to 1745 GMT).

You can go to to join and watch this live broadcast, snap and share your own photos during the event, chat with audience members and interact with the hosts, and personally control Slooh’s telescopes. The webcast will also appear at the top of this article, courtesy of Slooh.

Special Coverage: Transit of Mercury 2016: Full Coverage of the May 9 Event  / Visibility Maps and Guides How to Safely View the Mercury Transit

Alternative livestream


More info

Space .com
SDO: Mercury Transit
Planet Mercury | NASA
Mercury in depth
Mercury: Overview: The Swiftest Planet

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