"Mach 1: A Story of Planet Ionus Mach 1: A Story of Planet Ionus is a 1957 science fiction novel by Allen A. Adler. A paperback version was published in 1966 by Paperback Library with the alternate title Terror on Planet Ionus. While testing an experimental warship, the ""Mach 1"", a human pilot and his companion are kidnapped into space by aliens from the planet Ionus, which turns out to be a moon of Saturn. There, they confront an oversized monster named Karkong who is menacing the Ionians. Karkong follows them back to Earth. Chaos ensues. Damon Knight wrote of"
"moon on 15 December 1966, which he proposed to be named ""Janus"". On 18 December, Richard Walker made a similar observation which is now credited as the discovery of Epimetheus. However, at the time, it was believed that there was only one moon, unofficially known as ""Janus"", in the given orbit. Twelve years later, in October 1978, Stephen M. Larson and John W. Fountain realised that the 1966 observations were best explained by two distinct objects (Janus and Epimetheus) sharing very similar orbits. This was confirmed in 1980 by ""Voyager 1"", and so Larson and Fountain officially share the discovery"
"Juno (spacecraft) Juno is a NASA space probe orbiting the planet Jupiter. It was built by Lockheed Martin and is operated by NASA Jet Propulsion Laboratory. The spacecraft was launched from Cape Canaveral Air Force Station on August 5, 2011 (UTC), as part of the New Frontiers program, and entered a polar orbit of Jupiter on July 5, 2016 (UTC),(July 4, US time) to begin a scientific investigation of the planet. After completing its mission, ""Juno"" will be intentionally deorbited into Jupiter's atmosphere. ""Juno"" mission is to measure Jupiter's composition, gravity field, magnetic field, and polar magnetosphere. It will also"
"discovered by an interplanetary spacecraft. Soon after its discovery, two other of the inner moons of Jupiter (Thebe and Metis) were observed in the images taken a few months earlier by ""Voyager 1"". The ""Galileo"" spacecraft was able to determine the moon's shape in 1998, but the images remain poor. In 1983, Adrastea was officially named after the Greek nymph Adrastea, the daughter of Zeus and his lover Ananke. Although the ""Juno"" orbiter, which arrived at Jupiter in 2016, has a camera called JunoCam, it is almost entirely focused on observations of Jupiter itself. However, if all goes well should"
"Mab (moon) Mab ( ), or Uranus XXVI (26), is an inner satellite of Uranus. It was discovered by Mark R. Showalter and Jack J. Lissauer in 2003 using the Hubble Space Telescope. It was named after Queen Mab, a fairy queen from English folklore who is mentioned in William Shakespeare's play ""Romeo and Juliet"". Because the moon is small and dark, it was not seen in the heavily scrutinized images taken by ""Voyager 2"" during its Uranus flyby in 1986. However, it is brighter than another moon, Perdita, which was discovered from Voyager's photos in 1997. This led scientists"
"Ophelia (moon) Ophelia ( ) is a moon of Uranus. It was discovered from the images taken by ""Voyager 2"" on January 20, 1986, and was given the temporary designation S/1986 U 8. It was not seen until the Hubble Space Telescope recovered it in 2003. Ophelia was named after the daughter of Polonius, Ophelia, in William Shakespeare's play ""Hamlet"". It is also designated Uranus VII. Other than its orbit, radius of 21 km and geometric albedo of 0.08 virtually nothing is known about it. At the Voyager 2 images Ophelia appears as an elongated object, the major axis pointing"
"3 Juno Juno (minor-planet designation: 3 Juno) is an asteroid in the asteroid belt. Juno was the third asteroid discovered, in 1804, by German astronomer Karl Harding. It is the 11th-largest asteroid, and one of the two largest stony (S-type) asteroids, along with 15 Eunomia. It is estimated to contain 1% of the total mass of the asteroid belt. Juno was discovered on 1 September 1804, by Karl Ludwig Harding. It was the third asteroid found, but was initially considered to be a planet; it was reclassified as an asteroid and minor planet during the 1850s. Juno is named after"
"from John Keats's ""On First Looking Into Chapman's Homer"", are a reference to Herschel's discovery of Uranus. Many references to Uranus in English language popular culture and news involve humour about one pronunciation of its name resembling that of the phrase ""your anus"". Uranus Uranus (from the Latin name ""Ūranus"" for the Greek god Οὐρανός) is the seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have bulk chemical compositions which differ from that of the larger gas giants Jupiter and"
"Juliet (moon) Juliet ( , ) is an inner satellite of Uranus. It was discovered from the images taken by ""Voyager 2"" on 3 January 1986, and was given the temporary designation S/1986 U 2. It is named after the heroine of William Shakespeare's play ""Romeo and Juliet"". It is also designated Uranus XI. Juliet belongs to Portia Group of satellites, which also includes Bianca, Cressida, Desdemona, Portia, Rosalind, Cupid, Belinda and Perdita. These satellites have similar orbits and photometric properties. Unfortunately, other than its orbit, radius of 53 km and geometric albedo of 0.08 virtually nothing is known about"
"Audouin Dollfus Audouin Charles Dollfus (November 12, 1924 – October 1, 2010) was a French astronomer and aeronaut, specialist in studies of the Solar System and discoverer of Janus, a moon of Saturn. Dollfus was born in Paris to aeronaut Charles Dollfus. Dollfus studied at the University of Paris, obtaining a doctorate in physical sciences in 1955. Beginning in 1946, Dollfus worked as an astronomer at the Meudon Observatory, following his advisor and mentor Bernard Lyot. In particular, he directed the Laboratory of Solar System Physics there. Until his passing, he was an honorary astronomer at the Paris Observatory. Most"
"Kepler-6 Kepler-6 is a yellow giant situated in the constellation Cygnus. The star lies within the field of view of the Kepler Mission, which discovered it as part of a NASA-led mission to discover Earth-like planets. The star, which is slightly larger, more metal-rich, slightly cooler, and more massive than the Sun, is orbited by at least one extrasolar planet, a Jupiter-sized planet named Kepler-6b that orbits closely to its star. Kepler-6 was named for the Kepler Mission, a NASA project launched in 2009 that aims to discover Earth-like planets that transit, or cross in front of, their home stars"
"Helene (moon) Helene ( ; ) is a moon of Saturn. It was discovered by Pierre Laques and Jean Lecacheux in 1980 from ground-based observations at Pic du Midi Observatory, and was designated . In 1988 it was officially named after Helen of Troy, who was the granddaughter of Cronus (Saturn) in Greek mythology. Helene is also designated (12), which it was given in 1982, and Dione B, because it is co-orbital with Dione and located in its leading Lagrangian point (). It is one of four known trojan moons. Helene was initially observed from Earth in 1980, and ""Voyager"""
"rare heavy elements) is so high that no substantial atmosphere is possible. The presence of any atmosphere should be detectable by the polarization of light; Bernard Lyot and later Dollfus showed that there was no detectable polarization, thereby confirming the theoretical prediction that the Moon lacks an atmosphere. Direct visual observation became rare in astronomy. By 1965 Robert S. Richardson called Dollfus one of two great living experienced visual observers as talented as Percival Lowell or Giovanni Schiaparelli. In 1966, Dollfus discovered Janus, a small inner moon of Saturn. He made this discovery by observing at a time when the"
"the discovery of a sixth planet in 1781 using a telescope, there was long-term disagreement regarding its name. Its discoverer William Herschel named it Georgium Sidus (The Georgian Star) after his monarch George III. This was the name preferred by English astronomers, but others such as the French preferred ""Herschel"". Finally, the name ""Uranus"" became accepted in the mid-19th century, as suggested by astronomer Johann Bode as the logical addition to the existing planets' names, since Mars (""Ares"" in Greek), Venus, and Mercury were the children of Jupiter, Jupiter (""Zeus"" in Greek) the son of Saturn, and Saturn (Cronus in"
"Juliet. At the Voyager 2 images Juliet appears as an elongated object, the major axis pointing towards Uranus. The ratio of axes of Juliet's prolate spheroid is 0.5 ± 0.3, which is rather an extreme value. Its surface is grey in color. Juliet may collide with Desdemona within the next 100 million years. Explanatory notes Citations Juliet (moon) Juliet ( , ) is an inner satellite of Uranus. It was discovered from the images taken by ""Voyager 2"" on 3 January 1986, and was given the temporary designation S/1986 U 2. It is named after the heroine of William Shakespeare's"
"since 1935 and is registered at the International Astronomical Union (IAU). Earlier lunar cartographers had given the feature different names. Michael van Langren's 1645 map calls it ""Lennoxis"" after a Duke of Lennox of the early 17th century. And Johannes Hevelius called it ""Cydises Mons"" of the ancient world. By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Apianus. Apianus (crater) Apianus is a lunar impact crater that is located on the rugged south-central highlands of the Moon. It is located to the northeast of"
"and originally called it ""Georgium Sidus"" (George's Star) in honour of King George III of the United Kingdom. French astronomers began calling it Herschel before German Johann Bode proposed the name Uranus, after the Greek god. The name ""Uranus"" did not come into common usage until around 1850. Starting in 1801, asteroids were discovered between Mars and Jupiter. The first few (Ceres, Pallas, Juno, Vesta) were initially considered planets. As more and more were discovered, they were soon stripped of their planetary status. On the other hand, Pluto was considered to be a planet at the time of its discovery"
"the observed mass and reflected light of the system were all attributable to Pluto alone. Two additional moons were imaged by astronomers of the Pluto Companion Search Team preparing for the ""New Horizons"" mission and working with the Hubble Space Telescope on 15 May 2005, which received the provisional designations S/2005 P 1 and S/2005 P 2. The International Astronomical Union officially named these moons Nix (or Pluto II, the inner of the two moons, formerly P 2) and Hydra (Pluto III, the outer moon, formerly P 1), on 21 June 2006. Kerberos, announced on 20 July 2011, was discovered"
"results of the ""Galileo"" mission include: On December 11, 2013, NASA reported, based on results from the Galileo mission, the detection of ""clay-like minerals"" (specifically, phyllosilicates), often associated with organic materials, on the icy crust of Europa, moon of Jupiter. The presence of the minerals may have been the result of a collision with an asteroid or comet according to the scientists. NASA launched ""Juno"" on August 5, 2011 to study Jupiter in detail. It entered a polar orbit of Jupiter on July 5, 2016. The spacecraft is studying the planet's composition, gravity field, magnetic field, and polar magnetosphere. ""Juno"""
"these five, Titania, is 1,578 km in diameter and the eighth-largest moon in the Solar System, and about one-twentieth the mass the Earth's Moon. The orbits of the regular moons are nearly coplanar with Uranus's equator, which is tilted 97.77° to its orbit. Uranus's irregular moons have elliptical and strongly inclined (mostly retrograde) orbits at large distances from the planet. William Herschel discovered the first two moons, Titania and Oberon, in 1787, and the other three ellipsoidal moons were discovered in 1851 by William Lassell (Ariel and Umbriel) and in 1948 by Gerard Kuiper (Miranda). These five have planetary mass,"
"the Voyager 2 images Desdemona appears as an elongated object, the major axis pointing towards Uranus. The ratio of axes of Desdemona's prolate spheroid is 0.6 ± 0.3. Its surface is grey in color. Desdemona may collide with one of its neighboring moons Cressida or Juliet within the next 100 million years. Explanatory notes Citations Desdemona (moon) Desdemona ( ) is an inner satellite of Uranus. It was discovered from the images taken by ""Voyager 2"" on 13 January 1986, and was given the temporary designation S/1986 U 6. Desdemona is named after the wife of Othello in William Shakespeare's"
"Europa (moon) </math></ref> Europa ( ) (Jupiter II) is the smallest of the four Galilean moons orbiting Jupiter, and the sixth-closest to the planet. It is also the sixth-largest moon in the Solar System. Europa was discovered in 1610 by Galileo Galilei and was named after Europa, the mythological mother of King Minos of Crete and lover of Zeus (the Greek equivalent of the Roman god Jupiter). Slightly smaller than Earth's Moon, Europa is primarily made of silicate rock and has a water-ice crust and probably an iron–nickel core. It has a very thin atmosphere composed primarily of oxygen. Its"
"Enceladus Enceladus (; ) is the sixth-largest moon of Saturn. It is about in diameter, about a tenth of that of Saturn's largest moon, Titan. Enceladus is mostly covered by fresh, clean ice, making it one of the most reflective bodies of the Solar System. Consequently, its surface temperature at noon only reaches , far colder than a light-absorbing body would be. Despite its small size, Enceladus has a wide range of surface features, ranging from old, heavily cratered regions to young, tectonically deformed terrains. Enceladus was discovered on August 28, 1789, by William Herschel, but little was known about"
"the opportunity to visit Uranus and Neptune in the process. ""Pioneer 11"" imaged and nearly collided with one of Saturn's small moons, passing at a distance of no more than . The object was tentatively identified as Epimetheus, a moon discovered the previous day from ""Pioneer""s imaging, and suspected from earlier observations by Earth-based telescopes. After the Voyager flybys, it became known that there are two similarly-sized moons (Epimetheus and Janus) in the same orbit, so there is some uncertainty about which one was the object of Pioneer's near-miss. ""Pioneer 11"" encountered Janus on September 1, 1979 at 14:52 UTC"
"Desdemona (moon) Desdemona ( ) is an inner satellite of Uranus. It was discovered from the images taken by ""Voyager 2"" on 13 January 1986, and was given the temporary designation S/1986 U 6. Desdemona is named after the wife of Othello in William Shakespeare's play ""Othello"". It is also designated Uranus X. Desdemona belongs to Portia Group of satellites, which also includes Bianca, Cressida, Juliet, Portia, Rosalind, Cupid, Belinda and Perdita. These satellites have similar orbits and photometric properties. Other than its orbit, radius of 32 km and geometric albedo of 0.08 virtually nothing is known about Desdemona. At"
"Metis (moon) Metis (; ), also known as , is the innermost known moon of Jupiter. It was discovered in 1979 in images taken by ""Voyager 1"", and was named in 1983 after the first wife of Zeus, Metis. Additional observations made between early 1996 and September 2003 by the ""Galileo"" spacecraft allowed its surface to be imaged. Metis is tidally locked to Jupiter, and its shape is strongly asymmetrical, with one of the diameters being almost twice as large as the smallest one. It is also one of the two moons known to orbit Jupiter in less than the"
"the mythological Juno, the highest Roman goddess. The adjectival form is Junonian (""jūnōnius""). With two exceptions, 'Juno' is the international name, subject to local variation: Italian ""Giunone"", French ""Junon"", Russian ""Yunona"", etc. Its planetary symbol is ③. An older symbol, still occasionally seen, is ⚵ (). Juno is one of the larger asteroids, perhaps tenth by size and containing approximately 1% the mass of the entire asteroid belt. It is the second-most-massive S-type asteroid after 15 Eunomia. Even so, Juno has only 3% the mass of Ceres. The orbital period of Juno is 4.36578 years. Amongst S-type asteroids, Juno is"
"to 1.1 billion years ago. It is named after David Fabricius, a 16th-century German astronomer. By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Fabricius. Located southeast is the smaller Fabricius A, north of that is the smaller Fabricius B which nearly forms a double crater with the smaller circular arc further southeast and to the south nearly the same size is Fabricius J. The first and the third are also forming a rim of the adjacent crater of Janssen. Fabricius (crater) Fabricius is a"
"confirmed by the ""Voyager"" probes. They are trojan moons of Dione (Helene) and Tethys (Telesto and Calypso). The study of the outer planets has since been revolutionized by the use of unmanned space probes. The arrival of the ""Voyager"" spacecraft at Saturn in 1980–1981 resulted in the discovery of three additional moons – Atlas, Prometheus and Pandora, bringing the total to 17. In addition, Epimetheus was confirmed as distinct from Janus. In 1990, Pan was discovered in archival ""Voyager"" images. The ""Cassini"" mission, which arrived at Saturn in the summer of 2004, initially discovered three small inner moons including Methone"
"Iapetus (moon) Iapetus (; ), or occasionally Japetus , is the third-largest natural satellite of Saturn, eleventh-largest in the Solar System, and the largest body in the Solar System known not to be in hydrostatic equilibrium. Iapetus is best known for its dramatic ""two-tone"" coloration. Discoveries by the ""Cassini"" mission in 2007 revealed several other unusual features, such as a massive equatorial ridge running three-quarters of the way around the moon. Iapetus was discovered by Giovanni Domenico Cassini, an Italian astronomer, in October 1671. He had discovered it on the western side of Saturn and tried viewing it on the"
"(JUICE), due to launch in 2022. After flybys of all three icy Galilean moons, the probe is planned to enter orbit around Ganymede. Chinese astronomical records report that in 365 BC, Gan De detected what might have been a moon of Jupiter, probably Ganymede, with the naked eye. However, Gan De reported the color of the companion as reddish, which is puzzling since the moons are too faint for their color to be perceived with the naked eye. Shi Shen and Gan De together made fairly accurate observations of the five major planets. On January 7, 1610, Galileo Galilei observed"
"26, 2011 ""Juno"" is a space probe sent to Jupiter in 2011 and it entered orbit the night of July 4, 2016. ""Juno"" is part of the New Frontiers program of NASA and was also built with some contributions by the Italian Space Agency (ASI). It was suggested by the publication ""Popular Science"" that the Europa Lander may use a radiation vault like the Juno Jupiter orbiter. There are least 20 different electronics boxes inside the vault, which is intended to reduce the amount of radiation they receive. Examples of components inside the vault: JEDI and JunoCam do not have"
"balloon, in particular to study Mars in a detailed way. The asteroid 2451 Dollfus is named in his honour. One of the largest craters on Mars was also named for him in 2013. Dollfus was the President of the Société astronomique de France (SAF), the French popular astronomy society, from 1979 to 1981. The Société astronomique de France awarded him its Prix Jules Janssen in 1993. Audouin Dollfus Audouin Charles Dollfus (November 12, 1924 – October 1, 2010) was a French astronomer and aeronaut, specialist in studies of the Solar System and discoverer of Janus, a moon of Saturn. Dollfus"