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Eclipse Geeks - All you ever wanted to know about eclipses and other celstial bodies

United States Solar Eclipse 30 May 2012

Solar Safety

 

During an An Annular Solar eclipse when the Moon passes directly in front of the Sun, it does not cover it, as in a Total Solar Eclipse, instead it leaves a ring of bright sunlight surrounding the Moon; daylight levels will not seem that much different to normal levels.

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As the Moon crosses the Sun's exact-centre, viewers can experience a circular rim of sunlight completely surrounding the darkened Moon and the Sun will have the illusion that it has a large hole in the middle.

 

This ring of light is blindingly bright and although the Sun may be obscured by up to 94% it must not be viewed without approved eye protection or solar filters for binoculars and telescopes. It must be stressed that all safe solar viewing protocols are observed.

 

The Sun during an Annular is extremely powerful and permanent eye damage can occur if safe solar viewing protocols are ignored.

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United States of America Solar Eclipse - an Annular Solar Eclipse across parts of the western USA

The United States solar eclipse enters just north of San Francisco and ends just east of Albuquerque

An Annular Solar eclipse is when the Moon passes directly in front of the Sun but does not cover the entire disc of the Sun

United-States-USA-image-annular-solar-eclipse-geek Sun-Annular-Solar-Eclipse-Geeks

Summary USA Annular Solar Eclipse

 

The Annular Solar Eclipse shadow first passes over the coast of Oregon and California in the evening . The eclipse path sweeps out a south east path encompassing Nevada, Utah, Arizona, the southern west tip of Colorado, New Mexico, and ends at sunset just as it reaches Texas. Only observers within the central path of the Solar Eclipse will observe annularity, with the Moon central to the Sun.

 

The Solar Eclipse path USA is approximately 291 km / 181 miles wide as it approaches the coast of  Oregon and California - the eclipse shadow will have a ground velocity of over 3 times the speed of sound - travelling at 2,460 MPH / 3,959km. The eclipse path widens as it passes over the USA and at Albuquerque, New Mexico, will be a little wider at approximately 316.5km / 196 miles.  

 

USA states under the central path of the Annular Solar Eclipse: Oregon California, Nevada, Utah, Colorado, Arizona, New Mexico and Texas.

Observers outside the central path will observe a partial solar eclipse of varying degrees of obscurity depending on the viewer’s distance from the central track.

Observers under the central path of the eclipse wll be able to view the Moon central to the Sun.  

The Annular Solar Eclipse USA  

 

Observers within most regions of the United States will be able to view a Partial Solar Eclipse, while those in the east of the USA wil not see any part of the Solar Eclipse because the eclipse ends at sunset just as it reaches the northern region of Texas. Only those observers directly under the central path of the Solar Eclipse will be able to view the Moon central with the Sun. The closer a a viewer is to the central path, the more central the Moon will appear in the Sun's rim, as the examples either side show. .

USA  Annular Solar Eclipse Viewing Visibility

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The Annular Solar Eclipse occurs at the weekend and it is likely that many children and young students will be curious about the event and will want to watch the Solar Eclipse. All young children should be supervised ensuring that they follow all safe solar viewing protocols. We encourage everyone to observe the amazing Annular Solar Eclipse but to view it with the paramount objective as safety first.

 

Nature and Eclipses are a wonderful natural phenomena and brings to minds and hearts that we live on a big round ball silently turning in Space, that there are events of nature of which we have no control, and that the apparatus of the Solar System and its clockwork mechanism is indeed a wonder of life, the universe and everything.

image: Reuters / Beawiharta

World Map - Annular Solar Eclipse 20 May 2012

External/Internal

Contacts of Umbra

 

U1 = 22:06:16.9 UT

U2 = 22:11:46.7 UT

U3 = 01:33:42.6 UT

U4 = 01:39:10.9 UT

External/Internal

Contacts of Penumbra

 

P1 = 20:56:07.0 UT

P4 = 02:49:21.5 UT

Maxiimum

 

Path Width: 236.9 km  

                          147.2 miles

   Duration: 05m 46.3s

 Time Greatest Eclipse  23:53:53.3 TD    23:52:46.6 UT

 

Time Ecliptic Conjunction

 

23:48:07.8 TD

23:47:01.2 UT

Annular-Solar-Eclipse-2012-World-Map-Eclipse-Geeks.com

World Summary Annular Solar Eclipse 20 May 2012

 

The Solar Eclipse 20 May 2012 first external contact with Earth is just east of The Philippines at 20:56:07.7 UT. A partial solar eclipse is visible from the North Pole, East Asia, the North Pacific Ocean and western North America. The Annular Phase of the Solar Eclipse begins in China, crosses Honk Kong, clips the northern tip of Taiwan; it continues over Japan with its central line passing very close to Tokyo. The northern limit of the eclipse divides Japan, so that northern half of Japan will observe a partial eclipse, while those to the south can see the Annular Solar Eclipse. The eclipse continues, sweeping out an arc shape across the vast Pacific Ocean, entering the coast of the USA in the early evening; the central path very close to Eureka, California, a few miles south of the central line and Crescent City, CA, a few miles north of the central line. Approximate time at Crescent City CA is 00:08:02.2 UT (17:08:02.2 PDT).  The central line passes just north of Andy McBeth airfield California, continuing over the USA to Albuquerque, NM, (magnitude 96%) and ends at sunset as it enters Texas.

 

Nature and Eclipses are a wonderful natural phenomena and brings to minds and hearts that we live on a big round ball silently turning in Space, that there are events of nature of which we have no control, and that the apparatus of the Solar System and its clockwork mechanism is indeed a wonder of life, the universe and everything.

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click to enlarge

United States of America southwest region of the Annular Solar Eclipse 20 May 2012

Oregon, California, Nevada, Utah, Arizona, Colorado, New Mexico, Texas

First Solar Eclipse of 2012 - Annular Solar Eclipse 20 May 2012

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map credit: Eclipse-Maps.com/Michael Zeiler/Santa Fe/New Mexico/ USA

click to enlarge map

 United States - Annular Solar Eclipse 2012

USA cities and local circumstances of the Solar Eclipse.

 

Note: Times on imges are in UT/GMT - currant time zone western USA off-set to UT/GMT  -7 hours:  Western USA using PDT - Pacific Daylight Time

 

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Albuquerque NM USA

Sunsets before solar eclipse has finished.

Maximum Solar Eclipse Obscurity 87:09%

Santa Fe NM USA

Sunsets before solar eclipse has finished.

Maximum Solar Eclipse Obscurity 87:08%

Carson City NV USA

Maximum Solar Eclipse Obscurity 87:65%

Bismarck ND USA

Sunsets just before eclipse has ended

Maximum Solar Eclipse Obscuration 59.85%

Honolulu HI USA

 

Maximum Solar Eclipse Obscuration 08.86%

Adak AK USA NM USA

 

Maximum Solar Eclipse Obscurity 87:46%

above images;Crown Copyright © 2008-2012/HM Nautical Almanac Office (HMNAO)UK - under licence by eclipsegeeks.com

Anchorage AK USA

Maximum Solar Eclipse Obscuration 58.40%

San Francisco CA USA

Maximum Solar Eclipse Obscurity 84:22

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