2 Pallas (pal'-us) was the first asteroid discovered after 1 Ceres. It was found and named by H. Wilhelm Olbers on March 28, 1802. It was named after the feminine Pallas of Greek mythology, the daughter of Triton and friend of Athena. There are several other Pallantes (the masculine plural of Pallas) in Greek mythology: amongst them a Titan, and a goatish Giant. However, the first asteroids were invariably given female names. Categories: Astronomers stubs | 1758 births | 1840 deaths | German astronomers | German physicists | Lists of asteroids ... March 28 is the 87th day of the year in the Gregorian Calendar (88th in Leap years). ... 1802 was a common year starting on Friday (see link for calendar). ... The provisional designation of comets and asteroids are similar to each other: they both follow a pattern set in 1925 by the Minor Planet Center of the IAU. Historical designations At first, astronomers strove to assign symbols to the minor planets: 1 Ceres a stylized sickle 2 Pallas a lozenge... Minor planet is the official term for asteroids and trans-Neptunian objects. ... The asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. ... In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. ... July 14 is the 195th day (196th in leap years) of the year in the Gregorian Calendar, with 170 days remaining. ... 2004 is a leap year starting on Thursday of the Gregorian calendar. ... The Julian day or Julian day number (JDN) is the number of days that have elapsed since 12 noon Greenwich Mean Time (UT or TT) on Monday, January 1, 4713 BC (in the proleptic Julian calendar; or November 24, 4714 BC in the proleptic Gregorian calendar). ... (This page refers to eccitricity in astrodynamics. ... In geometry, the semi-major axis (also semimajor axis) a applies to ellipses and hyperbolas. ... Giga (symbol: G) is a prefix in the SI system of units denoting 109, or 1 000 000 000. ... The metre, symbol: m, is the basic unit of distance (or of length, in the parlance of the physical sciences) in the International System of Units. ... The astronomical unit (AU or au or a. ... This article is about several astronomical terms (apogee & perigee, aphelion & perihelion, generic equivalents based on apsis, and related but rarer terms. ... This article is about several astronomical terms (apogee & perigee, aphelion & perihelion, generic equivalents based on apsis, and related but rarer terms. ... The orbital period is the time it takes a planet (or another object) to make one full orbit. ... A day is any of several different units of time. ... A Julian year is the length of an average year in the Julian calendar, 365. ... The orbital speed of a body, generally a planet, a natural satellite, an artificial satellite, or a multiple star, is the speed at which it orbits around the barycenter of a system, usually around a more massive body. ... Kilo (symbol: k) is a prefix in the SI system denoting 103 or 1,000. ... The second (symbol s) is a unit for time, and one of seven SI base units. ... 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. ... Degree (angle) - Wikipedia /**/ @import /skins-1. ... The Longitude of the ascending node () is one of the orbital elements used to specify the orbit of an object in space. ... The argument of the perihelion is one of the orbital elements describing the orbit of a planet. ... In the study of orbital dynamics the mean anomaly is a measure of time, specific to the orbiting body p, which is a multiple of 2π radians at and only at periapsis. ... 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. ... Centi (symbol c) is a SI prefix in the SI system of units denoting a factor of 10-2, or 1/100. ... The cubic metre (symbol m³) is the SI derived unit of volume. ... Gravity is the force of attraction between massive particles due to their mass. ... 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... In astronomy, a rotation period is the time an astronomical object takes to complete one revolution around its rotation axis. ... An asteroid is a small, solid object in our Solar System, orbiting the Sun. ... In astronomy, absolute magnitude is the apparent magnitude, m, an object would have if it were at a standardized distance away. ... 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. ... 1 Ceres (seer-eez, Latin CerÄ“s) was the first asteroid to be discovered. ... Categories: Astronomers stubs | 1758 births | 1840 deaths | German astronomers | German physicists | Lists of asteroids ... March 28 is the 87th day of the year in the Gregorian Calendar (88th in Leap years). ... 1802 was a common year starting on Friday (see link for calendar). ... Pallas Athena. ... Greek mythology comprises the collected legends of Greek gods, goddesses, heroes, and heroines, originally created and spread within an oral-poetic tradition. ... In Greek mythology, Triton is the son of Poseidon and Amphitrite, the personification of the roaring waters, represented as having the upper body of a human and the tail of a fish. ... Athena from the east pediment of the Afea temple in Aegina After a sculpture of Athena at the Louvre. ... In Greek mythology, the Titans (Greek Τιτάν, plural Τιτᾶνες) are among a series of gods who oppose Zeus and the Olympian gods in their ascent to power. ... Giants are humanoid creatures of prodigious size and strength, a type of legendary monster that appear in the tales of many different races and cultures. ...

Pallas is the second largest Main belt asteroid, only a little larger than 4 Vesta. Its orbit is located in the central part of the belt but it is somewhat inclined and eccentric for a large asteroid. The Palladian composition is unique but quite similar to the C-type asteroids. The asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. ... An asteroid is a small, solid object in our Solar System, orbiting the Sun. ... 4 Vesta (ves-ta) is the third-largest asteroid in the Main belt, between 530 and 468 km in diameter. ... 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. ... 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. ... (This page refers to eccitricity in astrodynamics. ... C-type asteroids are carbonaceous asteroids. ...

Pallas has been observed occulting a star several times. Careful occultation timing measurements have helped give it an accurate diameter. In this July, 1997 still frame captured from video, the bright star Aldebaran has just reappeared on the dark limb of the waning crescent moon in this predawn occultation. ... The Pleiades star cluster A star is any massive gaseous body in outer space, just like the Sun. ...

During the occultation of May 29, 1979 the discovery of a possible tiny satellite with a diameter of ~1 km was reported. However, it has not been confirmed. In 1980, speckle interferometry was reported as indicating a much larger satellite with a diameter of 175 km, but the existence of the satellite was later refuted. (1) May 29 is the 149th day of the year in the Gregorian calendar (150th in leap years). ... 1979 is a common year starting on Monday. ... 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. ... 1980 is a leap year starting on Tuesday. ... Speckle interferometry is an image processing technique used in astronomy that can dramatically increase the resolution of ground-based telescopes. ...

Pallas has not yet been visited by a spacecraft, but if the Dawn probe is successful in studying 1 Ceres and 4 Vesta, its mission may be extended to Pallas. Dawn spacecraft, powered by ion thrusters The Dawn Mission is a NASA unmanned space mission that will send an orbiting space probe to examine the asteroids Ceres and Vesta. ... 1 Ceres (seer-eez, Latin Cerēs) was the first asteroid to be discovered. ... 4 Vesta (ves-ta) is the third-largest asteroid in the Main belt, between 530 and 468 km in diameter. ...

The chemical element palladium (atomic number 46) was named after Pallas. This article describes the chemical element palladium. ...

Aspects

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References

• James L. Hilton, U.S. Naval Observatory Ephemerides of the Largest Asteroids (1999)
• E. V. Pitjeva, Estimations of Masses of the Largest Asteroids and the Main Asteroid Belt From Ranging to Planets, Mars Orbiters And Landers (2004)
• IRAS Minor Planet Survey

1 Ceres (seer-eez, Latin Cerēs) was the first asteroid to be discovered. ... 3 Juno (jew-noh) was discovered on September 1, 1804 by German astronomer Karl L. Harding, using an humble 2-inch telescope. ...