"to describe it, including ""planeta"" (planet), ""stella"" (star), ""luna"" (moon), and the more modern ""satellite"" (attendant). Giovanni Cassini, in announcing his discovery of Saturn's moons Iapetus and Rhea in 1671 and 1672, described them as ""Nouvelles Planetes autour de Saturne"" (""New planets around Saturn""). However, when the ""Journal de Scavans"" reported Cassini's discovery of two new Saturnian moons in 1686, it referred to them strictly as ""satellites"", though sometimes Saturn as the ""primary planet"". When William Herschel announced his discovery of two objects in orbit around Uranus in 1787, he referred to them as ""satellites"" and ""secondary planets"". All subsequent"
"Despina (moon) Despina ( or ; Latin: ""Despœna""; Greek: ""Δέσποινα""), also known as Neptune V, is the third-closest inner satellite of Neptune. It is named after Greek mythological character Despoina, a nymph who was a daughter of Poseidon and Demeter. Despina was discovered in late July 1989 from the images taken by the ""Voyager 2"" probe. It was given the temporary designation S/1989 N 3. The discovery was announced (IAUC 4824) on August 2, 1989, but the text only talks of ""10 frames taken over 5 days"", giving a discovery date of sometime before July 28. The name was given"
"ring upon passing its Roche limit due to tidal stretching. The diameter of Despina is approximately . Despina (moon) Despina ( or ; Latin: ""Despœna""; Greek: ""Δέσποινα""), also known as Neptune V, is the third-closest inner satellite of Neptune. It is named after Greek mythological character Despoina, a nymph who was a daughter of Poseidon and Demeter. Despina was discovered in late July 1989 from the images taken by the ""Voyager 2"" probe. It was given the temporary designation S/1989 N 3. The discovery was announced (IAUC 4824) on August 2, 1989, but the text only talks of ""10 frames"
"666 Desdemona 666 Desdemona, provisional designation , is a stony asteroid from the middle region of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 23 July 1908, by German astronomer August Kopff at Heidelberg Observatory in southern Germany, and named after Desdemona, character in Shakespeare's ""The Tragedy of Othello, the Moor of Venice"". ""Desdemona"" is a stony S-type asteroid that orbits the Sun in the middle main-belt at a distance of 2.0–3.2 AU once every 4 years and 2 months (1,525 days). Its orbit has an eccentricity of 0.24 and an inclination of 8° with respect"
"due to tidal stretching. Relatively soon after, the spreading debris may impinge upon Despina's orbit. Thalassa (moon) Thalassa ( ; Greek: ""Θάλασσα""), also known as Neptune IV, is the second-innermost satellite of Neptune. Thalassa was named after sea goddess Thalassa, a daughter of Aether and Hemera from Greek mythology. ""Thalassa"" is also the Greek word for ""sea"". Thalassa was discovered sometime before mid-September 1989 from the images taken by the ""Voyager 2"" probe. It was given the temporary designation S/1989 N 5. The discovery was announced (IAUC 4867) on September 29, 1989, but the text only talks of ""25 frames"
"all fragmentary and based on results with less than full coverage (). According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer (WISE) with its subsequent NEOWISE mission, the asteroid's surface has an albedo between 0.095 and 0.106. While the ""Collaborative Asteroid Lightcurve Link"" agrees with the space-based IRAS and Akari surveys on a diameter of approximately 27 kilometers, the results from WISE and NEOWISE found a larger diameter of 31.5 to 32.7 kilometers, respectively. This minor planet was named after Desdemona, the wife of ""Othello"" in the"
"23131 Debenedictis 23131 Debenedictis, provisional designation """", is a bright background asteroid from the inner region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 5 January 2000, by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for 2007-ISEF awardee Erika Alden DeBenedictis. ""Debenedictis"" is a non-family from the main belt's background population. It orbits the Sun in the inner asteroid belt at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,220 days; semi-major axis of 2.23 AU)."
"on 16 September 1991. Despina is irregularly shaped and shows no sign of any geological modification. It is likely that it is a rubble pile re-accreted from fragments of Neptune's original satellites, which were smashed up by perturbations from Triton soon after that moon's capture into a very eccentric initial orbit. Despina's orbit lies close to but outside of the orbit of Thalassa and just inside the Le Verrier ring. As it is also below Neptune's synchronous orbit radius, it is slowly spiralling inward due to tidal deceleration and may eventually impact Neptune's atmosphere, or break up into a planetary"
"Deimos-2 Deimos-2 is a Spanish remote sensing Earth observation satellite built for Elecnor Deimos under an agreement with Satrec Initiative, a satellite manufacturing company in South Korea. The Earth observation system was developed by Elecnor Deimos, who managed the engineering, ground segment, integration, tests, launch contract and LEOP, in collaboration with Satrec Initiative, who provided the platform and the payload. The platform is based on DubaiSat-2 launched in 2013, with a larger battery pack intended to last for at least 7 years. The satellite was purchased by Urthecast in 2015, together with Deimos-1 and Deimos Imaging, the division of Elecnor"
"study has been realized for the Italian Space Agency. The Deformation, Ecosystem Structure and Dynamics of Ice (DESDynI) radar satellite, which was canceled in the White House's 2012 budget proposal, would have the capacity to identify elastic strain in tectonic plates, combining L-band interferometric synthetic aperture radar and a multi-beam infrared lidar to detect strains in the Earth’s surface that could lead to serious earthquakes. Russia and the United Kingdom agreed to jointly deploy two satellites in 2015 that will measure electromagnetic signals that are released from the earth's crust prior to earthquakes. The project is said to be able"
"distance from where the asteroid was discovered, she had the opportunity to observe her namesake. 23131 Debenedictis 23131 Debenedictis, provisional designation """", is a bright background asteroid from the inner region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 5 January 2000, by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, United States. The asteroid was named for 2007-ISEF awardee Erika Alden DeBenedictis. ""Debenedictis"" is a non-family from the main belt's background population. It orbits the Sun in the inner asteroid belt at a distance of 1.9–2.6"
"could be released in front of the spacecraft during the descent maneuver and then resulting in a densification of the atmosphere just in front of the spacecraft. Deimos (moon) Deimos (systematic designation: Mars II) is the smaller and outermost of the two natural satellites of the planet Mars, the other being Phobos. Deimos has a mean radius of and takes 30.3 hours to orbit Mars. Deimos is from Mars, much further than Mars's other moon, Phobos. It is named for Deimos who in Greek mythology is the twin brother of Phobos, and personifies terror. Deimos was discovered by Asaph Hall,"
"145 Adeona Adeona (minor planet designation: 145 Adeona) is a large asteroid from the intermediate asteroid belt, approximately in diameter. Its surface is very dark, and, based upon its classification as a C-type asteroid, is probably composed of primitive carbonaceous material. The spectra of the asteroid displays evidence of aqueous alteration. The Adeona family of asteroids is named after it. It was discovered by C. H. F. Peters on June 3, 1875, from the observatory at Hamilton College, Clinton, New York. Peters named it after Adeona, the Roman goddess of homecoming, because he had recently returned from a journey across"
"Deimos (moon) Deimos (systematic designation: Mars II) is the smaller and outermost of the two natural satellites of the planet Mars, the other being Phobos. Deimos has a mean radius of and takes 30.3 hours to orbit Mars. Deimos is from Mars, much further than Mars's other moon, Phobos. It is named for Deimos who in Greek mythology is the twin brother of Phobos, and personifies terror. Deimos was discovered by Asaph Hall, III at the United States Naval Observatory in Washington, D.C. on 12 August 1877, at about 07:48 UTC (given in contemporary sources as ""11 August 14:40"" Washington"
"of 151 km. The Dawn mission team discussed performing a flyby of this object, however NASA decided against it in July 2016. At the time this was considered Dawn was orbiting the large asteroid/dwarf planet 1 Ceres, and went on studying that body later that year. ""Dawn"" had previously orbited asteroid 4 Vesta, before traveling to Ceres. 145 Adeona Adeona (minor planet designation: 145 Adeona) is a large asteroid from the intermediate asteroid belt, approximately in diameter. Its surface is very dark, and, based upon its classification as a C-type asteroid, is probably composed of primitive carbonaceous material. The spectra"
"featured in the book and the lyrics to the song ""Desdemona's Building A Rocket Ship"". In both, a talented baker and former backup singer named Desdemona has a tryst with one of the workers ""under the giant telescope"", and begins receiving telepathic messages from the Pleiades, telling her to build a spaceship and ""come home"". Desdemona, a major character in the novel but not its protagonist, is a psychic based on a small island off the coast of Hispaniola. She finds her mission to be the building of a rocket ship to travel to the Pleiades. Lacking both science knowledge"
"DENIS-P J082303.1-491201 b DENIS-P J082303.1-491201 b (alias 2MASS J08230313-4912012 b) is a substellar object, classified as either an exoplanet or a brown dwarf, orbiting DENIS-P J082303.1-491201, an L1.5-type brown dwarf in the constellation Vela. was discovered by Sahlmann et al. (2013) using the ESO telescopes at the La Silla Paranal Observatory. It is part of an ultracool binary system. is located from Earth. At , it is listed as the second most massive planet in the NASA Exoplanet Archive. orbits the nearby L1.5-type brown dwarf , which is % the mass of our Sun, and has an orbital period of"
"a brightness variation of between 0.12 and 0.16 magnitude (). During Warner's photometric observations in 2012, it was revealed that ""Smetana"" is a synchronous binary asteroid with an orbiting minor-planet moon. The satellite, designated , orbits its primary every 22.43 hours and measures approximately 0.63 kilometers in diameter. However the binary status of ""Smetana"" has not yet been confirmed unambiguously, since observations in 2016 could not clearly detect any mutual occultation and eclipsing events. According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, ""Smetana"" measures 3.131 kilometers in diameter and its surface has"
"for which the mass has been directly measured. Cressida may collide with Desdemona within the next 100 million years. Explanatory notes Citations Cressida (moon) Cressida ( , ) is an inner satellite of Uranus. It was discovered from the images taken by ""Voyager 2"" on 9 January 1986, and was given the temporary designation S/1986 U 3. It was named after Cressida, the Trojan daughter of Calchas, a tragic heroine who appears in William Shakespeare's play ""Troilus and Cressida"" (as well as in tales by Geoffrey Chaucer and others). It is also designated Uranus IX. Cressida belongs to the Portia"
"Deimos that was in charge of the operation of both satellites. Deimos-2 is currently property of Deimos Imaging, who operates it and commercialises its data. Deimos-2 Deimos-2 is a Spanish remote sensing Earth observation satellite built for Elecnor Deimos under an agreement with Satrec Initiative, a satellite manufacturing company in South Korea. The Earth observation system was developed by Elecnor Deimos, who managed the engineering, ground segment, integration, tests, launch contract and LEOP, in collaboration with Satrec Initiative, who provided the platform and the payload. The platform is based on DubaiSat-2 launched in 2013, with a larger battery pack intended"
"Cressida, Desdemona, Portia, Juliet, Cupid, Rosalind and Belinda. These satellites have similar orbits and photometric properties. Little is known about Perdita apart from its orbit, radius of 15 km and geometric albedo of 0.08. Explanatory notes Citations Sources Perdita (moon) Perdita ( ) is an inner satellite of Uranus. Perdita's discovery was complicated. The first photographs of Perdita were taken by the ""Voyager 2"" spacecraft in 1986, but it was not recognized from the photographs for more than a decade. In 1999, the moon was noticed by Erich Karkoschka and reported. But because no further pictures could be taken to"
"Chaldene Chaldene ( ; ), also known as ', is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, ""et al."", in 2000, and given the temporary designation '. Chaldene is about 3.8 kilometres in diameter, and orbits Jupiter at an average distance of 22,713 Mm in 699.327 days, at an inclination of 167° to the ecliptic (169° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.2916. It was named in October 2002 after Chaldene, the mother of Solymos by Zeus"
"Deimos-1 Deimos-1 is a Spanish Earth imaging satellite which is operated by Deimos Imaging who commercializes its imagery directly but also has distribution agreements with other entities like Astrium GEO and DMC International Imaging. It was constructed by Surrey Satellite Technology for Elecnor Deimos, representing the first Spanish Earth observation satellite and the first private one in Europe. It is based on the SSTL-100 satellite bus. Deimos-1 was launched into a sun-synchronous low Earth orbit. The launch was conducted by ISC Kosmotras, who used a Dnepr carrier rocket, with DubaiSat-1 as the primary payload. Deimos-1, along with the UK-DMC 2,"
"Demeter (satellite) DEMETER (Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions) is a French micro-satellite operated by CNES devoted to the investigation of the ionospheric disturbances due to seismic and volcanic activity. It was launched on June 29, 2004 on a quasi Sun-synchronous circular orbit with an inclination of about 98.23° and an altitude of about 710 km. The altitude was changed to about 660 km in December, 2005. Due to the specific orbit, DEMETER is always located either shortly before the local noon (10:30 local time) or local midnight (22:30 local time). The satellite performs 14 orbits per day"
"a group of satellites called the Portia Group, which includes Bianca, Cressida, Desdemona, Juliet, Rosalind, Cupid, Belinda and Perdita. These satellites have similar orbits and photometric properties. Little is known about Portia beyond its size of about 140 km, orbit, and geometric albedo of about 0.08. In the Voyager 2 images, Portia appears as an elongated object whose major axis points towards Uranus. The ratio of axes of the Portia's prolate spheroid is 0.8 ± 0.1. Its surface is grey in color. Observations with Hubble Space Telescope and large terrestrial telescopes found water ice absorption features in the spectrum of"
"379 Huenna Huenna (minor planet designation: 379 Huenna) is a large asteroid orbiting in the asteroid belt. It is part of the Themis family, and thus a C-type asteroid and consequently composed mainly of carbonaceous material. It was discovered by Auguste Charlois on 8 January 1894 in Nice. It is named after the Swedish island of Hven, the site of two observatories. A satellite, 7 km across and designated S/2003 (379) 1, was discovered on 14 August 2003 by Jean-Luc Margot using the Keck II adaptive optics telescope at Mauna Kea. The moon orbits 3400±11 km away in 80.8±0.36 d"
"resulted in 11 kilometers for Spitzer and WISE/NEOWISE, 15 kilometer for AKARAI and the LCDB's best calculations, and 17 kilometers for the preliminary results of the NEOWISE mission. In October 2008, the discovery of a satellite in orbit of ""Cevenola"" was announced. The moon measures approximately 6 kilometers in diameter. The asteroid was named after the Cévennes, a mountain range in southern France at the eastern rim of the Massif Central. Naming citation was first mentioned in ""The Names of the Minor Planets"" by Paul Herget in 1955 (). 1333 Cevenola 1333 Cevenola, provisional designation , is a binary Eunomian"
"Lysithea (moon) Lysithea ( , ; ) is a prograde irregular satellite of Jupiter. It was discovered by Seth Barnes Nicholson in 1938 at Mount Wilson Observatory and is named after the mythological Lysithea, daughter of Oceanus and one of Zeus' lovers. Lysithea did not receive its present name until 1975; before then, it was simply known as . It was sometimes called ""Demeter"" from 1955 to 1975. It belongs to the Himalia group, five moons orbiting between 11 and 13 Gm from Jupiter at an inclination of about 28.3°. Its orbital elements are as of January 2000. They are"
"with an eccentricity of 0.334±0.075. The system is loosely bound as Huenna has a Hill sphere with a radius of about 20,000 km. 379 Huenna Huenna (minor planet designation: 379 Huenna) is a large asteroid orbiting in the asteroid belt. It is part of the Themis family, and thus a C-type asteroid and consequently composed mainly of carbonaceous material. It was discovered by Auguste Charlois on 8 January 1894 in Nice. It is named after the Swedish island of Hven, the site of two observatories. A satellite, 7 km across and designated S/2003 (379) 1, was discovered on 14 August"
"On February 19, 2008, a 10.3 Jupiter mass extrasolar planet was found to be orbiting the star. 18 Delphini 18 Delphini (abbreviated 18 Del), also named Musica, is a yellow giant star approximately 238 light-years from Earth in the constellation of Delphinus of the low northern hemisphere. An object believed to be an extrasolar planet (designated 18 Delphini b or Arion) orbits the star. 18 Delphini is the star's Flamsteed designation. Following its discovery the planet was designated 18 Delphini b. In July 2014 the International Astronomical Union launched a process for giving proper names to certain exoplanets and their"
"about 246 days. DENIS-P J082303.1-491201 b DENIS-P J082303.1-491201 b (alias 2MASS J08230313-4912012 b) is a substellar object, classified as either an exoplanet or a brown dwarf, orbiting DENIS-P J082303.1-491201, an L1.5-type brown dwarf in the constellation Vela. was discovered by Sahlmann et al. (2013) using the ESO telescopes at the La Silla Paranal Observatory. It is part of an ultracool binary system. is located from Earth. At , it is listed as the second most massive planet in the NASA Exoplanet Archive. orbits the nearby L1.5-type brown dwarf , which is % the mass of our Sun, and has an"
"Haumea Haumea (minor-planet designation 136108 Haumea) is a dwarf planet located beyond Neptune's orbit. It was discovered in 2004 by a team headed by Mike Brown of Caltech at the Palomar Observatory in the United States and independently in 2005, by a team headed by José Luis Ortiz Moreno at the Sierra Nevada Observatory in Spain, though the latter claim has been contested. On September 17, 2008, it was recognized as a dwarf planet by the International Astronomical Union (IAU) and named after Haumea, the Hawaiian goddess of childbirth. Haumea's mass is about one-third that of Pluto, and 1/1400 that"
"1588 Descamisada 1588 Descamisada, provisional designation , is an Eoan asteroid from the outer region of the asteroid belt, approximately 18 kilometers in diameter. It was discovered on 27 June 1951, by astronomer Miguel Itzigsohn at the La Plata Astronomical Observatory in La Plata, Argentina, and named in honor of Eva Perón. ""Descamisada"" is a member of the Eos family (), the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids. It orbits the Sun in the outer main-belt at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,924 days). Its orbit"