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Parts of Europe will be treated to three astronomical events at once on Friday: a supermoon, a total eclipse of the sun and the spring equinox. The concurrence of all three celestial events is rare and has excited both amateur and professional skywatchers. Gautam Naik reports. Parts of Europe will be treated to three celestial events at once on Friday: a supermoon, a total eclipse of the sun, and the spring equinox, when night and day are of equal duration. Solar eclipses are rare. The illusion of a supermoon can be witnessed several times a year, when the moon flies closest to the Earth and therefore appears larger than usual. The spring equinox occurs once a year, and marks the beginning of spring in the northern hemisphere. But the concurrence of all three events is extremely unusual, and has excited skywatchers. β€œThese are rare events and therefore memorable,” said Radmila Topalovic, an astronomer at the Royal Observatory Greenwich, England, which will aim a dozen specially modified telescopes at the sky on Friday so people can view the two-hour eclipse. β€œDespite all the planning it’s going to be a humbling experience.” A solar eclipse occurs when the moon completely blocks our view of the sun’s disk, turning day into night. Though total solar eclipses occur somewhere on earth every 18 months on average, they recur at any given place just once every 360 to 410 years. The moon is 400 times smaller than the sun but also 400 times closer, so it appears the same size in the sky and virtually covers all of the sun during a solar eclipse. During a total eclipse, the cone-shaped shadow of the moon becomes narrower as it extends toward Earth. The path of β€œtotality” is typically 10,000 miles long but only about 100 miles wide.
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Land Surveyor Photos

Survey Photos by Tag or CategoryEarth's Largest Survey Photos Collection

Land Surveying Photos CollectionSince 2007, Land Surveyors around the world have shared their best Surveying Photos from the field. Inside this collection you can transport yourself to virtually any location on Earth and see how Land Surveyors work, types of equipment being used and environmental challenges associates with being a land surveyor in that location.

Location Based Chapter Hubs also have photos specific to the locations they represent. You can use our Surveyor Apps for quick sharing of your photos from the field.

Note: Members who have uploaded their photos of surveying to this collection can also move their photos to location based hubs. To see how, follow this tutorial.

Looking for Specific Types of Surveying Photos?   Check out the Surveying Photo Feeds Page.  Want to see photos submitted by surveyors grouped by tag?  Check out the Photos Categories Page.

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Survey Photos by Tag or CategoryEarth's Largest Survey Photos Collection

Land Surveying Photos CollectionSince 2007, Land Surveyors around the world have shared their best Surveying Photos from the field. Inside this collection you can transport yourself to virtually any location on Earth and see how Land Surveyors work, types of equipment being used and environmental challenges associates with being a land surveyor in that location.

Location Based Chapter Hubs also have photos specific to the locations they represent. You can use our Surveyor Apps for quick sharing of your photos from the field.

Note: Members who have uploaded their photos of surveying to this collection can also move their photos to location based hubs. To see how, follow this tutorial.

Looking for Specific Types of Surveying Photos?   Check out the Surveying Photo Feeds Page.  Want to see photos submitted by surveyors grouped by tag?  Check out the Photos Categories Page.

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