Observe a partial eclipse of the Sun   – Astronomy Now


The partial phase of the total eclipse of the Solar of 21 August 2017, the so-called ‘Nice American Eclipse’. Picture: Jamie Cooper.

This month’s partial eclipse of the Solar is seen throughout the size and breadth of the UK on the morning of twenty fifth October 2022. Photo voltaic eclipses seen from the UK are fairly rare, so this occasion presents a high-quality alternative to observe because the Moon progressively encroach upon the Solar.

The partial eclipse begins quickly after 10am BST, when the Moon contacts the Solar’s northern limb. Observers in Scotland are marginally first in line, at 10.03am BST, and so they’ll see 30.6% of the Solar’s diameter hidden, the biggest (see the desk under). 

At NO POINT on this eclipse must you have a look at the Solar straight, as you’ll be able to throughout totality of a total eclipse of the Solar when the entire of the Solar is roofed by the Moon. The easiest way to view is by ‘projection’, when a pair of binoculars or a small telescope can be utilized to venture the solar disc onto white card; you should cap the instrument’s most important optics, in addition to any finder whilst you’re lining up the Solar (see the picture).

Projecting the Solar’s disc by a small telescope onto a sheet of white card is a protected technique of viewing the partial eclipse. Picture: Steve Ringwood.

The eclipse is seen throughout virtually all of Europe, the place extra easterly cities, akin to Berlin and Warsaw will expertise a bigger partial eclipse (magnitude 43.6% and 52.1%, respectively). Chelyabinsk, in Russia’s Ural Federal District, has the accolade of the biggest eclipse for a significant metropolis; at 2.02pm native time, 83.4% of the solar disc will probably be hidden by the Moon (the utmost eclipse happens at 11.01 UT, with a magnitude of 86.19%, or 0.8619). 

The ‘magnitude of the eclipse’ is the fraction of the diameter of the Solar’s disc that’s lined by the Moon (it may be expressed as both a share or a decimal fraction [i.e. 30.6% or 0.306]. Eclipse obscuration is the fraction of the Solar’s space occulted by the Moon.

On the morning of 25 October there’s an excellent alternative to see a partial eclipse of the Solar. At most eclipse, 30.6% and 25.9% of the Solar’s diameter is hidden by the Moon from Edinburgh and London at 10.55am and 10.59am BST, respectively. All AN graphic by Greg Smye-Rumsby.



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