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Q: "Sight" -- Can you see Cuba from the United States? ( Answered ,   1 Comment )
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 Subject: "Sight" -- Can you see Cuba from the United States? Category: Reference, Education and News > General Reference Asked by: latino123-ga List Price: \$4.00 Posted: 05 Apr 2004 02:07 PDT Expires: 05 May 2004 02:07 PDT Question ID: 325314
 ```Is it possible to see with your own eyes (no binoculars or other help) Cuba from the United States? and if so, from what US city (e.g. Miami, Key West)? Also, What can you see? Light? I imagine that you need a very very good day/night in order to see something, what is the best season or time of the day? Any other related info would be appreciated (e.g. Maybe you need to be in the roof of a big building to see something) Thanks.```
 ```Hi latino123-ga, It's commonly said that on a clear day you can almost see Cuba from Key West. And some people forget to include the word "almost" when they repeat this claim. Unfortunately, Cuba is too far from the US to be seen from ground level. It's 90 miles from Key West to Cuba. Allowing for the curvature of the earth, a person in Key West would be able to see Cuba if there was a Cuban mountain 2059 feet high - but the highest Cuban ground near the 90-mile point is only 344 feet above sea level. Tim Sevener explains the maths in a Usenet newsgroup posting: "it was *physically impossible* to see Cuba from Key West, given the curvature of the Earth. The highest point anywhere close to the 90 mile point from Key West on Cuba is 344 feet. The height of the tangent line of sight from Key West to a point 90 miles away is 2059 feet. I.e. there is a difference of *1700* feet between the tangent line of sight and the highest point in Cuba close to 90 miles from Key West." Newsgroup posting to sci.misc http://groups.google.com/groups?selm=3925%40whuts.UUCP&oe=UTF-8&output=gplain You can read the whole thread here: "The Last Word on Friedman, Sevener and Cuba" http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&c2coff=1&safe=off&threadm=3925%40whuts.UUCP&rnum=1&prev=/groups%3Fq%3D%2522see%2Bcuba%2Bfrom%2B*%2522%26hl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26c2coff%3D1%26safe%3Doff%26selm%3D3925%2540whuts.UUCP%26rnum%3D1 and you will see that much heated argument followed about whether refraction of light might make it possible to occasionally see Cuba from the US. However, even making the most extreme assumptions leads to a calculation that a mountain at the end of Cuba would need to be 844 feet high to be seen from the US under hypothetical high-refraction conditions (see the same Tim Sevener posting referenced above for details). And even visiting a high point in Key West (such as the 10th floor of Howard Johnson's La Concha) isn't going to gain you enough height to make it possible: http://groups.google.com/groups?selm=3788C8EF.7EF%40earthlink.net&oe=UTF-8&output=gplain Of course, if you're flying then you can certainly see Cuba from above Key West! Finally, consider that the tourist brochures that promise you can (almost) see Cuba would certainly have photos if it were indeed possible. I hope you find this information useful, and trust that you're not too disappointed! Google search strategy: "see cuba" "key west" ://www.google.com/search?q=%22see+cuba%22+%22key+west%22 "can see cuba from *" ://www.google.com/search?q=%22can%20see%20cuba%20from%20*%22 Google Groups search strategy: "can see cuba from *" http://groups.google.com/groups?q=%22can+see+cuba+from+*%22 Google Images search strategy: "cuba from" "key west" http://images.google.com/images?q=%22cuba+from%22+%22key+west%22 Regards, eiffel-ga```
 latino123-ga rated this answer: and gave an additional tip of: \$1.00 `Thank you very much, this is what I was expecting. Excellent answer.`
 ```Thanks, latino123, for your kind tip. eiffel-ga```