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Topic: Transit of Mercury from Venus

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Transit of Mercury from Saturn

Transit of Mercury from Mars

Astronomical transit

Transit of Mercury from Jupiter

Transit of Venus from Jupiter

Transit of Mars from Jupiter

Transit of Earth from Jupiter

Transit of Mercury

Transit of Venus

Transit of Earth from Mars

Transit of Deimos from Mars

Occultation

Solstice

Obliquity of the ecliptic

Sun

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	Mercury Transit
		During the transit, the silhouette of Mercury was visible by day as the innermost planet passed directly between the earth and the sun.
		Transit of Mercury details from Fred Espenak include a table giving the times of major events during the 2006 transit; a map showing the global visibility; and the Index to Local Circumstances, showing when the transit is seen from locations around the world.
		Doppelmayer illustrates the path of Mercury across the face of the sun for the November 6, 1720, transit of Mercury.
	www.transitofvenus.org /mercury.htm (1384 words)

	Transit of Venus - Wikipedia, the free encyclopedia
		A transit is similar to a solar eclipse by the Moon, but, although the diameter of Venus is almost 4 times that of the Moon, Venus appears much smaller because it is much further away from the Earth.
		Transits of Venus are rare and currently occur in a pattern that repeats every 243 years, with pairs of transits 8 years apart separated by long gaps of 121.5 years and 105.5 years.
		Horrocks corrected Kepler's calculation for the orbit of Venus and realised that transits of Venus would occur in pairs 8 years apart, and so predicted the transit in 1639, although he was uncertain of the exact time.
	en.wikipedia.org /wiki/Transit_of_Venus (1930 words)

	Transit of Mercury from Venus - Wikipedia, the free encyclopedia
		A transit of Mercury across the Sun as seen from Venus takes place when the planet Mercury passes directly between the Sun and Venus, obscuring a small part of the Sun's disc for an observer on Venus.
		Transits of Mercury from Venus occur in an irregular fashion: sometimes there are several per decade, while on other occasions there are longer gaps.
		The transit that occurred on March 21, 1894 was particularly interesting, because during the transit of Mercury from Venus there was simultaneously a transit of Venus from Saturn and a transit of Mercury from Saturn.
	en.wikipedia.org /wiki/Transit_of_Mercury_from_Venus (292 words)

	Transit of Venus - LearnThis.Info Enclyclopedia (Site not responding. Last check: 2007-10-22)
		Transits of Venus are rare and occur in a pattern that repeats every 243 years, with pairs of transits 8 years apart separated by long gaps of 121.5 years and 105.5 years.
		The last transit during which Venus was only partially visible in front of the Sun for some areas of the world was on December 6 1631.
		The simultaneous occurrence of a transit of Mercury and a transit of Venus is currently impossible.
	encyclopedia.learnthis.info /t/tr/transit_of_venus.html (1425 words)

	Encyclopedia: Mercury (planet) (Site not responding. Last check: 2007-10-22)
		Mercury ranges from â’0.4 to 5.5 in apparent magnitude, and its greatest angular separation from the Sun (greatest elongation) is only 28.3Â°, meaning it is only ever seen in twilight.
		Mercury's axial tilt is only 0.01 degrees, which is over 300 times smaller than that of Jupiter, which is the second smallest axial tilt of all planets at 3.1 degrees.
		One theory is that Mercury originally had a metal-silicate ratio similar to common chondrite meteors and a mass approximately 2.25 times its current mass, but that early in the solar system's history Mercury was struck by a planetesimal of approximately 1/6 that mass.
	www.nationmaster.com /encyclopedia/Mercury-(planet) (8807 words)

	Transit of Venus (Site not responding. Last check: 2007-10-22)
		A transit is similar to a solareclipse by the Moon, but, although the diameter of Venus is almost 4 times that of theMoon, Venus appears much smaller because it is much further away from the Earth.
		Transits of Venus are rare and occur in a pattern that repeats every 243 years, with pairs of transits 8 years apart separatedby long gaps of 121.5 years and 105.5 years.
		Johannes Kepler was the first to predict a transit of Venus in 1631, but no one observed it, because Kepler's predictions were not sufficiently accurateto predict the fact that the transit would not be visible in most of Europe.
	www.therfcc.org /transit-of-venus-5735.html (1112 words)

	Transits of Mercury and Venus
		Later in November the expedition observed a transit of Mercury from Mercury Bay in New Zealand during the exploration of the coast line of the country.
		The next pair of transits of Venus occur fairly early in the 21st century, in June 2004 and in June 2012.
		The ascending node of Venus is at a longitude of nearly 77° and the descending node is at nearly 257°.
	www.rasnz.org.nz /Transits.htm (1297 words)

	Transit of Venus Article, TransitVenus Information (Site not responding. Last check: 2007-10-22)
		This effect was described in detail by Mikhail Lomonosov who had observed it during the transit of 1761 and considered it as an evidence that Venus had a thick atmosphere; however somerecent studies assert that it is an optical effect.
		The simultaneous occurrence of a transit of Mercury and atransit of Venus is currently impossible.
		Only 5 hours after the transit of Venus on June 4, 1769 there was a total solar eclipse, which was visible in Northern America, Europe and Northern Asia almost aspartial solar eclipse.
	www.anoca.org /transits/sun/transit_of_venus.html (1350 words)

	Transit of Mercury : November 15, 1999
		Transit of Venus is easier to view without any telescope but proper filter is still required.
		The first person to observe a transit of Mercury was Gassendi who watched the event of November 7th, 1631 from Paris.
		Transits of Mercury occur in pairs about three years apart and always in the months of May and November.
	touro.ligo-la.caltech.edu /~jkern/Transit (475 words)

	1999 Transit of Mercury
		The transit or passage of a planet across the disk of the Sun is a relatively rare occurrence.
		Transits of Venus are only possible during early December and June when Venus's orbital nodes pass across the Sun.
		Transits of Venus show a clear pattern of recurrence at intervals of 8, 121.5, 8 and 105.5 years.
	sunearth.gsfc.nasa.gov /eclipse/OH/transit99.html (1366 words)

	NASA - Planetary Transits Page
		The transit or passage of a planet across the disk of the Sun may be thought of as a special kind of eclipse.
		To determine whether a transit of Mercury is visible from a specific geographic location, it is simply a matter of calculating the Sun's altitude and azimuth during each phase of the transit using information tabulated in the Seven Century Catalog of Mercury Transit.
		To determine whether a transit of Venus is visible from a specific geographic location, it is simply a matter of calculating the Sun's altitude and azimuth during each phase of the transit using information tabulated in the Six Millennium Catalog of Venus Transits.
	sunearth.gsfc.nasa.gov /eclipse/transit/transit.html (1349 words)

	Transits of Mercury and Venus (Fact Sheet)
		The planets Mercury and Venus are the only two planets to transit the Sun, when viewed from the Earth, with the latter, the transits of Venus, occurring in pairs that are more than 100 years apart.
		Transits of Mercury and Venus appear as small dark spots against the disc of the Sun instead of covering the whole disc, as the Moon does in an eclipse.
		The last pair of transits of Venus occurred in 1874 and 1882
	www.transit.csiro.au (385 words)

	2004 Transit of Venus
		The transit or passage of a planet across the face of the Sun is a relatively rare occurrence.
		Venus transits were better suited to this goal than were Mercury transits because Venus is closer to Earth and consequently exhibits a larger parallax.
		The next transit of Venus occurs on 2012 Jun 06 and is visible from Asia, Australia and parts of Africa, Europe, North and South America.
	sunearth.gsfc.nasa.gov /eclipse/OH/transit04.html (1875 words)

	Transit of Venus
		The Transit of Venus is when the Planet Venus passes directly between the Earth and the Sun.
		Transit of Venus is the fl silhouette of Planet Venus crossing the Sun's face.
		Transits of Mercury are more common than transits of Venus, and occur every three to thirteen years.
	www.aerospaceguide.net /planet/transitofvenus.html (560 words)

	SEDS Forums - venus transit (Site not responding. Last check: 2007-10-22)
		The last transit of Venus took place on 6 December 1882, but the last one that could have been seen in its entirety from the UK, as on this occasion, was in 1283 (when no one knew it was happening) and the next will not be until 2247!
		Transits of Mercury are more common; there are 13 or 14 each century, the next being in November 2006.
		Venus begins to leave the Sun near the '5 o'clock' position at about 12.04 BST and the transit will be completely over around 12.24.
	forums.seds.org /printthread.php?t=488 (371 words)

	The Nov.08/09, 2006 Transit of Mercury
		TRANSIT PARAMETERS Below are some descriptive statistics for the transit, where all times are in UT (Universal Time) and PA stands for position angle, measured in degrees counterclockwise from celestial north.
		Th is is the maximum shift of the observed path of Mercury from its geocentric path.
		Mercury can be spotted on the Sun with low-power safely filtered binoculars, but you will probably need a telescope magnifying at least 50 times, and 60 mm in aperture or larger, to see the details of ingress and egress and time the four transit contacts.
	www.lpl.arizona.edu /~rhill/alpo/transitstuff/transit061109.html (1507 words)

	TRANSIT OF VENUS - EnchantedLearning.com
		Venus' orbital plane is tilted by 3.39 degrees with respect to the ecliptic.
		Mercury and Venus have two positions of conjunction: when either planet is directly between the Earth and the Sun, it is in inferior conjunction; when either planet is on the far side of the Sun from the earth, it is in superior conjunction.
		Transit is when a smaller body passes in front of a larger one (for example, when an object passes between the Sun and the Earth).
	www.zoomschool.com /subjects/astronomy/planets/venus/transit.shtml (1075 words)

	Transit of Venus
		The next transit of Venus occurs in June 2012.
		A transit of Venus is so rare that, up to June 8, 2004, no human then alive had witnessed this celestial event.
		"Transit of Venus dot org" will guide you to instructions for safe viewing; interactive education and hands-on activities; global observing programs for students; background information and tutorials; insights into historical endeavors and the adventures of explorers; the role of spacecraft and the search for extra-solar planets; and miscellaneous items relating to the transit of Venus.
	www.transitofvenus.org (679 words)

	2003 Mercury Transit - Venus Transit 2004 Website (Site not responding. Last check: 2007-10-22)
		Patrick Poitevin witnessed the transit of Mercury of November 6,
		Only the two inner planets in our solar system, Mercury and Venus, can be seen from the earth as they pass in front of the sun.
		Venus transit of 1761, however, were not satisfactory.
	www.vtransit.com /vt/mercury/patrick.asp (1042 words)

	THE TRANSIT OF MERCURY ON 2003
		The chief interest in transits of Venus in the 18th and 19th centuries was timing limb contacts in order to determine the value of the solar parallax, and thus the Earth-Sun distance.
		Some historical observers of transits of Venus have reported anomalous phenomena, such as deformations of the planet limb, areas or points of light within the dark hemisphere of Venus, or a halo of light, much wider than the aureole, around the planet when fully on the disk of the Sun.
		For transit photographs or images to be of scientific value in recording such phenomena as the aureole and the fl drop, a large image scale is necessary, even to the extent that Venus covers a significant portion of the frame.
	www.lpl.arizona.edu /~rhill/alpo/transitstuff/transit2004.html (3384 words)

	APOD: 2004 June 8 - A Planet Transits the Sun (Site not responding. Last check: 2007-10-22)
		Venus crossing, called a transit, last occurred in 1882 and was
		Today's transit will be visible in its entirety throughout Europe and most of Asia and Africa.
		Mercury's closer proximity to the Sun cause it to transit every few years.
	antwrp.gsfc.nasa.gov /apod/ap040608.html (140 words)

	Solar eclipse - Wikipedia, the free encyclopedia
		On these occasions, an object — especially a planet (often Mercury) — may be visible near the sunrise or sunset point of the horizon when it could not have been seen without the eclipse.
		The next anticipated simultaneous occurrence of a Solar eclipse and a transit of Mercury will be on July 5, 6757, and of a Solar eclipse and a transit of Venus is expected on April 5, 15232.
		Only 5 hours after the transit of Venus on June 4, 1769 there was a total solar eclipse, which was visible in Northern America, Europe and Northern Asia as partial solar eclipse.
	en.wikipedia.org /wiki/Solar_eclipse (3131 words)

	SPACE.com -- Viewer's Guide: Watch Mercury Cross the Sun
		Mercury and Venus are the only major planets we can ever see crossing the face of the Sun.
		Transits of Venus happen less than twice a century (the next one is scheduled for June 6, 2012).
		Mercury's transit will begin within a minute of 19:12 GMT (Greenwich Mean Time) at every site from which it is visible.
	www.space.com /spacewatch/061103_night_sky.html (1299 words)

	Transit of Venus - Nehru Centre
		On 7 November 1631, the transit of Mercury was observed in Paris, by the astronomer Pierre Gassendi (1592-1655).
		Halley realized that the transits of Venus are rare, hence could be used to measure the distance between the Earth and the Sun to very high accuracy.
		In 1716, he postulated that if a Venus transit were observed from several widely spaced locations on the Earth, the combined data would provide an excellent way to measure the parallax of the Sun and hence the distance between the Earth and Sun.
	www.nehrucentremumbai.com /TransitofVenus1.htm (1093 words)

	TRANSIT OF VENUS Cloze Activity: EnchantedLearning.com
		During a transit of Venus, _______________________________ passes directly between the Earth and the Sun, and Venus appears as a small, dark dot crossing the bright disk of the _______________________________.
		A transit is when a smaller body passes in front of a _______________________________ one (for example, when an object like Venus passes between the _______________________________ and the Sun).
		Venus' orbital plane is tilted by _______________________ degrees with respect to the ecliptic.
	www.zoomdinosaurs.com /subjects/astronomy/cloze/transitofvenus (332 words)

	Quarter Million Year Canon of Solar System Transits
		From the Earth, transits of Mercury and Venus are visible; recently, observers were treated to these spectacles in back-to-back years: 2003 and 2004.
		Venus is the large white sphere which appears first, Mercury the fleeting green messenger zipping in for its own rapid transit; they aren't both simultaneously in transit for long, but it's unambiguous, and only happens once in the quarter million years I searched for such events.
		We define the "centre" of the transit as the integration step with the maximum depth; for this transit of Mercury, as seen from Earth, this occurred at 07:40 UTC with a depth of 0.0669 which, within the granularity of the integration, agrees with the actual time of geocentric mid-transit at 07:52:23.
	www.fourmilab.ch /documents/canon_transits (8624 words)

	Astrological events: Transit of Mercury- November 2006
		Only the transits of Mercury and Venus are visible from the earth as their orbits lie inside that of the earth.
		During the November transit, Mercury is near perihelion and exhibits a disc only 10 arc-seconds in diameter.
		This November transits recur at intervals of 7,13 or 33 years.The next transit of Mercury will occur on 9th May 2016 and will be visible from the Americas, Europe, Africa and Central Asia.
	www.findyourfate.com /planets/mercury-transit.htm (340 words)

	Mercury Transit on May 7, 2003 - HOTLINE
		However, Mercury is too far from the Earth and the "parallax" (shift in position of the planet's disk caused by the different locations of the observers on the Earth) to be measured is too small.
		The Mercury transit happens today because Mercury is located exactly on the line-of-sight from the Earth towards the Sun at this very moment.
		This is due to the relative motion of the nodes of Mercury and Venus on the ecliptic.
	www.astro.uni.wroc.pl /vt-2004/mt-2003/mt-display-hotline.html (1786 words)

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