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• The Phases of Venus.
• Venus is an inferior planet. Because Venus is so close to the Earth and lies nearer to the Sun, it shows phases, similar to the way the Moon does. ...

• Venus: Earth's Twin.
• Venus is referred to as the Evening Star because it is the brightest planet that can be viewed from Earth. ...
• Venus and Earth are similar in size, composition, and mass. They differ in that Venus does not have oceans or human life, and its temperature during the day reaches 484 degrees Celsius. ... Venus revolves around the Sun in a circular orbit once every 225 Earth days. Venus rotates slowly on its axis in a clockwise direction, which is referred to as a "retrograde" rotation because it is the opposite of the other eight planets. ... As with the other inner planets, the surface of Venus has been shaped by impact craters, tectonic activity, and volcanoes which scientists believe to be ongoing. ... Venus does not have any naturally occurring satellites.
• A movie showing Venus' rotation.
• RADAR image of the surface of Venus.
• A Pioneer Venus picture of Venus.
• If you were standing on Venus, why would the Sun appear to rise in the west and set in the east?.

• Jeremiah Horrox: Venus in sole visa .
• The chance of a clouded atmosphere caused me much anxiety; for Jupiter and Mercury were in conjunction with the Sun almost at the same time as Venus. ...
•   Having attentively examined Venus with my instrument, I described on a sheet of paper a circle whose diameter was nearly equal to six inches, the narrowness of the apartment not permitting me conveniently to use a larger size. ...
•    Although the corrected computation of Venus' motions which I had before prepared, and on the accuracy of which I implicitly relied, forbade me to expect anything before three o'clock in the afternoon of the 24th; yet since, according to the calculations of most astronomers, the conjunction should take place sooner, by some even on the 23rd, I was unwilling to depend entirely on my own opinion which was not sufficiently confirmed, lest by too much self-confidence I might endanger the observation. ... This evidently had nothing to do with Venus. ... I then beheld a most agreeable spectacle, the object of my sanguine wishes, a spot of unusual magnitude and of a perfectly circular shape, which had already fully entered upon the Sun's disk on the left, so that the limbs of the Sun and Venus were precisely coincided, forming an angle of contact. ...
•    In the first place, with respect to the inclination, the line of the diameter of the circle being perpendicular to the horizon, although its place was somewhat inclined on account of the Sun's altitude, I found that the shadow of Venus at the aforesaid hour, namely fifteen minutes past three, had entered the Sun's disk about 62O 30', certainly between 60O and 65O, from the top towards the right. This was the appearance in the dark apartment; therefore out of doors beneath the open sky, according to the laws of optics, the contrary would be the case, and Venus would be below the centre of the Sun, distant 62O 30' from the lower limb, or the nadir, as the Arabians term it. ...
•    In the second place, the distance between the centres of Venus and the Sun I found, by three observations, to be as follows: At 3. ...
•    In the third place, I found after careful and repeated observation, that the diameter of Venus, as her shadow was depicted on the paper, was larger indeed than the thirtieth part of the solar diameter, though not more so than the sixth, or at the utmost the fifth, of such a part. Therefore, let the diameter of the Sun be to the diameter of Venus as 30' to 1'12". ...
•    This is all I could observe respecting this celebrated conjunction, during the short time the Sun remained in the horizon; for although Venus continued on the disk for several hours, she was not visible to me longer than half-an-hour, on account of his so quickly setting. ...

• The Transits of Venus Working Group.
• "Recognizing the historical importance of previous transits of Venus and the numerous transit of Venus expeditions mounted by various countries, and.
• Commission 41 Recommends that the sites of previous transit of Venus expeditions be inventoried, marked and preserved, as well as instrumentation and documents associated with these expeditions. ...
• In order to take this Resolution forward, a Transits of Venus WG was formed, with the additional aims of assembling a bibliography of existing publications relating to all transits of Venus, and encouraging colleagues to carry out further research and to publish their results. ...

• Magellan Mission to Venus.
• The Magellan spacecraft was launched on May 4, 1989, arrived at Venus on August 10, 1990 and was inserted into a near-polar elliptical orbit with a periapsis altitude of 294 km at 9. ... The primary objectives of the Magellan mission were to map the surface of Venus with a synthetic aperture radar (SAR) and to determine the topographic relief of the planet. ... ) The mission was divided up into "cycles", each cycle lasted 243 days (the time necessary for Venus to rotate once under the Magellan orbit - i. ... ) The mission proceeded as follows: 04 May 1989 - Launch 10 Aug 1990 - Venus orbit insertion and spacecraft checkout 15 Sep 1990 - Cycle 1: Radar mapping (left-looking) 15 May 1991 - Cycle 2: Radar mapping (right-looking) 15 Jan 1992 - Cycle 3: Radar mapping (left-looking) 14 Sep 1992 - Cycle 4: Gravity data acquisition 24 May 1993 - Aerobraking to circular orbit 03 Aug 1993 - Cycle 5: Gravity data acquisition 30 Aug 1994 - Windmill experiment 12 Oct 1994 - Termination experiment - loss of signal 13 Oct 1994 - Presumed loss of spacecraft .
• The Magellan mission scientific objectives were to study land forms and tectonics, impact processes, erosion, deposition, chemical processes, and model the interior of Venus. ... Over 80% of Venus lies within 1 km of the mean radius of 6051. ... The gravity field of Venus is highly correlated with the surface topography, which indicates the mechanism of topographic support is unlike the Earth, and may be controlled by processes deep in the interior. Details of the global tectonics on Venus are still unresolved.
• Other views of Venus are available at the NSSDC Image Catalog and Photo Gallery. ...
• Venus FMAPs - Full resolution Venus mosaics.
• F-MIDRs and C-MIDRs - Full resolution and compressed Venus images.
• Pre-Magellan - Earth-based radar images of Mercury, Venus, Moon, and Mars.
• The Venus Geologic Mappers Handbook - mapping the surface from Magellan radar.
• Magellan: The Unveiling of Venus - overview of mission plans.
• Venus Fact Sheet.

• Corona on Venus. ...
• Computer-simulated view of a corona on the surface of Venus. ... This corona has a diameter of 97 km, although coronae on Venus range up to 2000 km in diameter. ...

• Venus.
• The oldest temple known of Venus dates back to 293 BCE, and was inaugurated on August 18. ... A second festival, that of the Veneralia, was celebrated on April 1 in honor of Venus Verticordia, who later became the protector against vice. ... After the Roman defeat near Lake Trasum in 215 BCE, a temple was built on the Capitol for Venus Erycina. ...
• Venus is the daughter of Jupiter, and some of her lovers include Mars and Vulcan, modeled on the affairs of Aphrodite. Venus' importance rose, and that of her cult, through the influence of several Roman political leaders. The dictator Sulla made her his patroness, and both Julius Caesar and the emperor Augustus named her the ancestor of their (Julian) family: the 'gens Julia' was Aeneas, son of Venus and the mortal Anchises. Ceasar introduced the cult of Venus Genetrix, the goddess of motherhood and marriage, and built a temple for her in 46 BCE. ... The last great temple of Venus was built by the emperor Hadrianus near the Colusseum in 135 CE. ...
• Roman statues and portraits of Venus are usually identical to the Greek representations of Aphrodite. ...
• The story of Venus and Adonis, as told by Thomas Bulfinch. ...
• Venus.

• Transit of Venus, June 8th, 2004.
• Venus has done it!.
• On June 8th, 2004 Venus will pass the Sun's disc - an event which looks slightly different when observed from different locations on Earth. ...
• The differences are smaller than the apparent radius of Venus and you can recognize them only by exact measurements or by combinating simultaneously taken pictures: .
• to gather information due to transits of Venus in the past, especially the importance for determining the distance to the Sun, i. ...
• to learn determining the exact position of an object (Venus!) on the Sun's disc, .
• Daylight side of the Earth when Venus enters the Sun: From this part of the world the 1rst and 2nd contact can be observed. Daylight side of the Earth when Venus leaves the Sun: From this part of the world the 3rd and 4th contact can be observed. ...
•    Measuring the radius of Venus' orbit.
• Other Venus Sites.
• School Project Venus-Transit .
• : Untersuchung des Vorüberganges der Venus vor der Sonnenscheibe im Jahre 1882, Nova Acta der Ksl. ...
• : June 8, 2004 - Venus in Transit, Princeton University Press: Princeton 2000 .
• : Discussion of Observations of the Transits of Venus in 1761 and 1769, in: S. ...
• Woolf: The Transits of Venus, Princeton University Press: Princeton 1959. ...

• Live webcast of the Transit of Venus from COAA 2004 June 08 .
• In conjunction with the VT 2004 programme, supported by the European Commission in the frame of the European Science Week 2004, during the morning of 08 June 2004, the Transit of Venus will appearred live on this page. ...
• This poem was written by the young astronomer Jeremiah Horrocks after having witnessed the transit of Venus that he had succesfully predicted on November 24th 1639.
• The inset shows a highly exaggerated contrast stretched version of the larger image (left) which may show the Lomonossov ring effect of diffraction of sunlight through the upper layers of Venus' atmosphere. ...

• Venus Alive!:.
• Chapter 1: Stepsister Venus .
• Chapter 2: Coy Venus .
• Chapter 4: Venus Unmasked .
• Chapter 5: Venus Pursued .
• Chapter 6: Venus Penetrated .
• Chapter 8: Magellan Courts Venus .
• Chapter 9: Venus Disorbed .
• Chapter 11: Venus Alive .

• A rare transit of Venus occurred June 8, 2004, when Venus passed directly between the earth and the sun. ...
• Imagine that daughter Venus and her mother Earth are going to race around their house. ...   Mother Earth agrees to run eight laps or until daughter Venus overtakes her five times, whichever comes first. ...
•   This alignment is called an inferior conjunction--Venus is between the sunny door and earth. ...
• In our race, mother Earth goes around once in a minute, but daughter Venus does it in less than 37 seconds, or about 8/13ths of Mom's time.    (Planet Venus orbits the sun in 225 days; planet earth orbits the sun in 365 days. ...
• 6 laps (around the house once and just past the back of the house a second time), mother Earth sees daughter Venus overtake her. ...
• Mom notes her and daughter Venus' positions.
• 6 laps, daughter Venus catches up to and overtakes her on the inside track.   Finally, after mother Earth has completed eight laps around the house, daughter Venus catches up to Mom for the fifth time. ...
• It would seem daughter Venus passes between mother Earth and the yellow front door (ignoring the intervening house) five times in eight years. ...
• On the paper plate, cut two slits just outside the Venus markings to incline the planet's orbit. ...
• Though the orbit of Venus is inclined 3. ...   The runners in front of the starting line represent the 1996 positions of the earth and Venus.   The hinges represent the two nodes, where the planes of the orbits of Venus and earth coincide.   As Venus completes a first lap it approaches the descending node of its inclined path. ...

• Venus.
•             |   Sol  |   Mercury  |   Venus  |   Earth  |   Mars  |   Jupiter  |   Saturn  |   Uranus  |   Neptune  |   Pluto  |   Sol b?  | .
• The second planet from the Sun at about seven tenths of the Earth-Sun distance, Venus is the sixth largest planet but has no moon. ... ) However, its rotation is very slow with 243 Earth days in a single "Venus day," which is slightly longer than the planet's year, and retrograde when compared with Earth's so that the Sun rises in the west and sets in the east. The planet's period of rotation is synchronized with its orbital period so that Earth always sees the same face when Venus is at its closest approach. On the other hand, Venus can be seen from Earth with the naked eye as the brightest "star" in the night sky. ...
• The densities and chemical compositions of the two rocky planets are also similar, and radar observations found that Venus has relatively few craters indicating a relatively young or quickly changing surface like Earth. As a result, it was thought that below the planet's dense clouds, Venus might even have life. ...
• Venus has no oceans and is surrounded by a heavy atmosphere composed mostly of carbon dioxide. ...
• Hartmann's graphical comparison of the atmospheres of Venus versus Earth). ... As a result, Venus' surface is actually hotter than Mercury's despite being nearly twice as far from the Sun. ...
• Around the Venera 13 probe at bottom, the dissicated, daytime landscape of Venus displays .
• Venus probably once had large amounts of water like Earth, but it may have all boiled away in a runaway greenhouse effect as the planet is now quite dry. This may have occurred because Venus is closer than Earth to the Sun, which has also grown about 40 percent brighter over the past 4. ...
• Around 1988, Jeffrey Kargel of the US Geological Survey estimated that Venus may have lost its water around four billion years ago -- just 600 million years after the Solar System's birth. ...
• which survived for only 127 minutes on Venus' surface. ...

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