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Encyclopedia > Francisco (moon)
Francisco
Discovery
Discovered by Matthew J. Holman,
John J. Kavelaars,
Dan Milisavljevic,
and Brett J. Gladman
Discovered in August 13, 2003
Orbital characteristics
Semi-major axis 4,276,000 km
Eccentricity 0.1459
Orbital period 266.56 d
Inclination 135.14° (to Uranus' equator)
145.220° (to the local Laplace plane)
147.52° (to the ecliptic)
Is a satellite of Uranus
Physical characteristics
Mean diameter 12 km
Surface area ~450 km2
Volume ~900 km3
Mass 1.3×1015 kg
Mean density ~1.5 g/cm3
Surface gravity ~0.0025 m/s2
Escape velocity ~0.0055 km/s
Rotation period  ?
Axial tilt  ?°
Albedo 0.04 (assumed)
Surface temp.
min mean max
 ? K ~65 K  ? K
Atmospheric pressure 0 kPa

Francisco (fran-sis'-koe, IPA /frænˈsɪsko/) is a natural satellite of Uranus. It was discovered by Matthew J. Holman, et al. and Brett J. Gladman, et al. in 2003 from pictures taken in 2001. It is named after a lord in William Shakespeare's play The Tempest. Matthew J. Holman is a Smithsonian Astrophysicist and lecturer at Harvard University. ... JJ Kavelaars is a Canadian astronomer who was part of a team that discovered several moons of Jupiter, Saturn, Uranus, and Neptune. ... Brett J. Gladman is an Associate Professor at the University of British Columbias Department of Physics and Astronomy, in Vancouver, British Columbia. ... August 13 is the 225th day of the year in the Gregorian Calendar (226th in leap years), with 140 days remaining. ... 2003 (MMIII) is a common year starting on Wednesday of the Gregorian calendar. ... In physics, an orbit is the path that an object makes, around another object, whilst under the influence of a source of centripetal force, such as gravity. ... In geometry, the term semi-major axis (also semimajor axis) is used to describe the dimensions of ellipses and hyperbolas. ... A kilometre (American spelling: kilometer), symbol: km is a unit of length in the metric system equal to 1000 metres (from the Greek words χίλια (khilia) = thousand and μέτρο (metro) = count/measure). ... In astrodynamics, under standard assumptions any orbit must be of conic section shape. ... The orbital period is the time it takes a planet (or another object) to make one full orbit. ... Inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit and is the angular distance of the orbital plane from the plane of the reference (usually planets equator or the ecliptic), stated in degrees. ... The Laplace plane is defined as the mean plane occupied by the orbit of a satellite during a precession cycle. ... The plane of the ecliptic is well seen in this picture from the 1994 lunar prospecting Clementine spacecraft. ... Moons of solar system scaled to Earths Moon The common noun moon (not capitalized) is used to mean any natural satellite of the other planets. ... Atmospheric characteristics Atmospheric pressure 120 kPa Hydrogen 83% Helium 15% Methane 1. ... For the geometric term, see diameter. ... Area is a physical quantity expressing the size of a part of a surface. ... Square kilometre (US spelling: Square kilometer), symbol km², is an SI unit of surface area. ... Volume, also called capacity, is a quantification of how much space an object occupies. ... A cubic kilometre (symbol km³) is an SI derived unit of volume. ... Mass is a property of physical objects that, roughly speaking, measures the amount of matter they contain. ... The international prototype, made of platinum-iridium, which is kept at the BIPM under conditions specified by the 1st CGPM in 1889. ... Density (symbol: ρ - Greek: rho) is a measure of mass per unit of volume. ... Gravity is the force of attraction between massive particles. ... Acceleration is the time rate of change of velocity, and at any point on a v-t graph, it is given by the gradient of the tangent to that point In physics, acceleration (symbol: a) is defined as the rate of change (or time derivative) of velocity. ... In physics, for a given gravitational field and a given position, the escape velocity is the minimum speed an object without propulsion, at that position, needs to have to move away indefinitely from the source of the field, as opposed to falling back or staying in an orbit within a... On a prograde planet like the Earth, the sidereal day is shorter than the solar day. ... Axial tilt is an astronomical term regarding the inclination angle of a planets rotational axis in relation to its orbital plane. ... The albedo is a measure of reflectivity of a surface or body. ... Temperature is the physical property of a system which underlies the common notions of hot and cold; the material with the higher temperature is said to be hotter. ... The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. ... diurnal (daily) rhythm of air pressure in northern Germany (black curve is air pressure) Atmospheric pressure is the pressure above any area in the Earths atmosphere caused by the weight of air. ... The pascal (symbol Pa) is the SI unit of pressure. ... IPA may refer to: The International Phonetic Alphabet or India Pale Ale ... Moons of solar system scaled to Earths Moon The common noun moon (not capitalized) is used to mean any natural satellite of the other planets. ... Atmospheric characteristics Atmospheric pressure 120 kPa Hydrogen 83% Helium 15% Methane 1. ... Matthew J. Holman is a Smithsonian Astrophysicist and lecturer at Harvard University. ... Brett J. Gladman is an Associate Professor at the University of British Columbias Department of Physics and Astronomy, in Vancouver, British Columbia. ... 2003 (MMIII) is a common year starting on Wednesday of the Gregorian calendar. ... 2001: A Space Odyssey. ... Wikipedia does not yet have an article with this exact name. ... The Tempest is the title of: A play by William Shakespeare A painting by Giorgione A Star Trek: Deep Space Nine novel It is also the nickname often attached to the Sonata No. ...


Following its discovery, Francisco was given the provisional designation S/2001 U 3. In addition to Francisco, this moon is also designated Uranus XXII.

Uranus' natural satellitesedit
Cordelia | Ophelia | Bianca | Cressida | Desdemona | Juliet | Portia | Rosalind | Cupid | Belinda
Perdita | Puck | Mab | Miranda | Ariel | Umbriel | Titania | Oberon | Francisco
Caliban | Stephano | Trinculo | Sycorax | Margaret | Prospero | Setebos | Ferdinand

 

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