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Venus Transit from GOES/SXI
| Title |
Venus Transit from GOES/SXI |
| Abstract |
The planet Venus is seen passing between the Earth and the Sun in this sequence of images taken by GOES/SXI. The last Venus Transit was in 1882, the next will be in 2012. |
| Completed |
2004-07-20 |
|
Venus Transit from GOES/SXI
| Title |
Venus Transit from GOES/SXI |
| Abstract |
The planet Venus is seen passing between the Earth and the Sun in this sequence of images taken by GOES/SXI. The last Venus Transit was in 1882, the next will be in 2012. |
| Completed |
2004-07-20 |
|
Venus Transit from GOES/SXI
| Title |
Venus Transit from GOES/SXI |
| Abstract |
The planet Venus is seen passing between the Earth and the Sun in this sequence of images taken by GOES/SXI. The last Venus Transit was in 1882, the next will be in 2012. |
| Completed |
2004-07-20 |
|
Venus Transit from GOES/SXI
| Title |
Venus Transit from GOES/SXI |
| Abstract |
The planet Venus is seen passing between the Earth and the Sun in this sequence of images taken by GOES/SXI. The last Venus Transit was in 1882, the next will be in 2012. |
| Completed |
2004-07-20 |
|
Venus Transit from GOES/SXI
| Title |
Venus Transit from GOES/SXI |
| Abstract |
The planet Venus is seen passing between the Earth and the Sun in this sequence of images taken by GOES/SXI. The last Venus Transit was in 1882, the next will be in 2012. |
| Completed |
2004-07-20 |
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Simulated Transit of Mercury
| Title |
Simulated Transit of Mercury |
| Explanation |
Mercury, the solar system's innermost planet, will spend about five hours crossing in front of the Sun today [ http://science.nasa.gov/headlines/y2006/ 20oct_transitofmercury.htm ] - beginning at 1912 UT [ http://aa.usno.navy.mil/faq/docs/UT.html ] (2:12pm EST), November 8. Specially equipped telescopes are highly recommended to safely spot the planet's [ http://antwrp.gsfc.nasa.gov/apod/ap991210.html ] diminutive silhouette however, as Mercury should appear about 200 times smaller than the enormous solar disk. This simulated view [ http://www.sungazer.net/transitsim.html ] is based on a filtered solar image recorded on November 3rd. It shows active regions and the Mercury transit [ http://sunearth.gsfc.nasa.gov/eclipse/OH/transit06.html ] across the Sun at six positions from lower left to middle right [ http://www.sungazer.net/transit110806a.html ]. Depending on your location [ http://sunearth.gsfc.nasa.gov/eclipse/OH/ image1/TM2006Nov08-Fig2.GIF ], the Sun may not be above the horizon during the entire transit, but webcasts of the event [ http://www.exploratorium.edu/transit/ ] are planned - including one using images from the sun-staring SOHO [ http://sohowww.nascom.nasa.gov/hotshots/ 2006_11_06/ ] spacecraft. This is the second of 14 transits of Mercury during the 21st century. The next similar event will be a transit of Venus in June of 2012. |
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A Planet Transits the Sun
| Title |
A Planet Transits the Sun |
| Explanation |
Today an astronomical event will occur that no living person has ever seen: Venus will cross [ http://sunearth.gsfc.nasa.gov/sunearthday/2004/vt_edu2004_venus_back_his.htm ] directly in front of the Sun. A Venus crossing [ http://sunearth.gsfc.nasa.gov/sunearthday/2004/index_vthome.htm ], called a transit, last occurred in 1882 and was front-page [ http://image.gsfc.nasa.gov/poetry/venus/News/NYT12071882.pdf ] news [ http://image.gsfc.nasa.gov/poetry/venus/News/News.html ] around the world. Today's transit will be visible [ http://skyandtelescope.com/observing/objects/planets/article_1021_1.asp ] in its entirety throughout Europe and most of Asia and Africa. The northeastern half of North America [ http://science.nasa.gov/headlines/y2004/02jun_viewersguide.htm ] will see the Sun rise with the dark dot of Venus [ http://www.saao.ac.za/~wpk/tov1882/tovwell.html ] already superposed. Never look directly at the Sun [ http://sunearth.gsfc.nasa.gov/eclipse/SEhelp/safety.html ], even when Venus is in front [ http://image.gsfc.nasa.gov/poetry/venus/TransitFAQs.html ]. Mercury's closer proximity to the Sun cause it to transit every few years. In fact, the above image mosaic of Mercury crossing the Sun [ http://www.space.com/scienceastronomy/venus_transit_2004.html ] is from two [ http://antwrp.gsfc.nasa.gov/apod/ap991119.html ] transits [ http://antwrp.gsfc.nasa.gov/apod/ap991210.html ] ago [ http://antwrp.gsfc.nasa.gov/apod/ap030513.html ], in November 1999. Will anyone living see the next Venus transit [ http://www.astronomy.com/content/dynamic/articles/000/000/001/745fvezh.asp ]? Surely yes since it occurs in 2012. |
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A Rare Annular Venusian Sola
…
| Title |
A Rare Annular Venusian Solar Eclipse |
| Explanation |
An unusual type of solar eclipse occurred last week. Usually it is the Earth's Moon [ http://www.nineplanets.org/luna.html ] that eclipses [ http://zebu.uoregon.edu/~js/glossary/eclipse.html ] the Sun. Last week, for the first time in over 100 years, the planet Venus [ http://www.nineplanets.org/venus.html ] took a turn. Like a solar eclipse [ http://antwrp.gsfc.nasa.gov/apod/ap010408.html ] by the Moon, the phase of Venus [ http://astrosun2.astro.cornell.edu/academics/courses/astro201/venus_phase.htm ] became a continually thinner crescent [ http://antwrp.gsfc.nasa.gov/apod/ap010619.html ] as Venus became increasingly better aligned with the Sun. Eventually the alignment became perfect and the phase [ http://antwrp.gsfc.nasa.gov/apod/ap030810.html ] of Venus dropped to zero. The dark spot [ http://antwrp.gsfc.nasa.gov/apod/ap040609.html ] of Venus crossed our parent star. The situation could technically be labeled a Venusian annular eclipse [ http://www.mreclipse.com/Special/SEprimer.html ] with an extraordinarily large ring of fire [ http://antwrp.gsfc.nasa.gov/apod/ap020610.html ]. From above [ http://www.pbl33.fast24.co.uk/ ] the thick cloud tops of Venus [ http://antwrp.gsfc.nasa.gov/apod/ap040516.html ], the Earth appeared in its fullest phase, brighter in the Venusian sky than even Mars appeared [ http://antwrp.gsfc.nasa.gov/apod/ap030902.html ] from Earth last August. Hours later, as Venus continued in its orbit, a slight crescent phase appeared again. The next Venusian solar eclipse [ http://science.nasa.gov/spaceweather/venustransit/gallery_08jun04.htm ] will occur in 2012. |
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Space Station, Venus, Sun
| Title |
Space Station, Venus, Sun |
| Explanation |
On June 8, Venus [ http://www.nineplanets.org/venus.html ] was not the only celestial object to pass in front of the Sun. A few well-situated photographers caught the International Space Station [ http://antwrp.gsfc.nasa.gov/apod/ap021208.html ] also crossing the Sun simultaneously. Pictured above [ http://science.nasa.gov/spaceweather/venustransit/gallery_08jun04_page14.htm ] is a unique time-lapse image of the unprecedented double transit, a rare event [ http://www.esa.int/esaHS/SEMBBK3VQUD_iss_0.html ] that was visible for less than a second from a narrow band on Earth. The above image [ http://atm.zaciatok.sk/atm/atm.nsf/0/0F3E5E0223691EF4C1256EB50034B66F?OpenDocument ] is a combination of 12 frames taken 0.033 seconds apart and each themselves lasting only 1/10,000 th of a second. The image [ http://atm.zaciatok.sk/atm/atm.nsf/vdb_AllByDate?OpenView&count=10 ] was taken from the small village of Stupava [ http://www.tourist-channel.sk/stupava/indexen.php3 ] in Slovakia [ http://www.cia.gov/cia/publications/factbook/geos/lo.html ]. The next time [ http://sunearth.gsfc.nasa.gov/eclipse/transit/venus0412.html ] Venus will appear [ http://antwrp.gsfc.nasa.gov/apod/ap040615.html ] to cross [ http://antwrp.gsfc.nasa.gov/apod/ap040611.html ] the Sun from Earth will be in 2012. |
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