Don't miss out: the Mercury transition on Monday, May 9!

If the weather cooperates, the transition is excellent to see with binoculars or a telescope. You then see a black dot moving in front of the sun.

The transition can be admired on Monday between 1.12 pm and 8.41 pm. Mercury then moves between the earth and the sun and clearly stands out against the sun disk in the form of a black dot.

0.0040 percent less sunlight
When Mercury moves in front of the sun, it blocks some sunlight. Yet we will hardly notice it on earth. During the transition there is only 0.0040 percent less sunlight on our planet, as can be read on the site Hemel.waarnemen.com.

Telescope or binoculars
Do you want to see the Mercury transition? That won't work with the naked eye. You need binoculars or a telescope with a special filter. And remember: observing the sun without special protection can lead to eye damage. So always be careful. Do you not want to run any risk? There are several universities that offer you the opportunity to admire the transition with the help of special sun viewers and therefore very safely. You can, for example, go to Leiden University for this.

No time? Then you have to be patient again. The next Mercury transition that is visible in its entirety from our country will take place in 2039.