The moon will block 25% of the sun's light on Tuesday.
People in northern Scotland are expected to get good views of the phenomenon.
The sun will appear to have a bite taken out of it as the moon blocks the view of some or all of the bright solar surface.
The best view of the eclipse will be in western Siberia, where the moon will obscure most of the sun.
The eclipse will begin in London at 10:00am on 25 October, with the maximum eclipse occurring at 10.59am when the moon will obscure 15% of the sun.
Lerwick is expected to have a better view of the solar eclipse.
The eclipse will be visible across the UK, as well as parts of Europe and central and south Asia, according to Jake Foster. Depending on where you are on the Earth, the amount of obscuration will vary.
He said that even though a portion of the sun's light will be blocked, it will not be noticeably darker in the UK.
There will be a partial eclipse in London.
If you look directly at the sun, you can cause serious damage to the eyes. It's not a bad idea to use a telescope or binoculars to look at the sun.
The easiest way to view an eclipse is to use a piece of paper. An image of the sun can be projected on to another piece of card, but it will need to be at least 30 cm away from the sun.
It's not a good idea to look through the hole.
The mirror projection method is one of the most popular ways to see an eclipse. He said, "You need a small, flat mirror and a means of placing it in the sun so that it reflects the sunlight into a room where you can see it on a wall or a flat screen."
Eclipse glasses with a certified safety mark can be found from specialist astronomy suppliers. You can see the sun through them if they are undamaged.
The sun can beprojected using telescopes or binoculars. Attach one piece of card with a hole in it over the eyepiece and place another between 50 cm and a meter away.
You should see the sun's bright image on the separate card if you point the telescope at it.
The Royal Observatory will stream the eclipse on its website.