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Encyclopedia > 44 Nysa
44 Nysa
Discovery
Discovered by: H. Goldschmidt
Discovery date: May 27, 1857
Orbital characteristics
Epoch July 14, 2004 (JD 2453200.5)
Aphelion distance: 416.457 Gm (2.784 AU)
Perihelion distance: 308.491 Gm (2.062 AU)
Semi-major axis: 362.474 Gm (2.423 AU)
Eccentricity: 0.149
Orbital period: 1377.608 d (3.77 a)
Avg. orbital speed: 19.13 km/s
Mean anomaly: 112.959°
Inclination: 3.703°
Longitude of ascending node: 131.610°
Argument of perihelion: 342.519°
Physical characteristics
Dimensions: 70.6 km
Mass: 3.7×1017 kg
Mean density: 2.0 g/cm³
Equatorial surface gravity: 0.0197 m/s²
Escape velocity: 0.0373 km/s
Rotation period: 0.2676 d
Albedo: 0.546 2
Temperature: ~151 K
Spectral type: E
Absolute magnitude: 7.03

44 Nysa (IPA: [ˈnaɪsə]) is a quite large and very bright main belt asteroid. It is also the brightest member of the Nysa asteroid family. It is classified as a rare class E asteroid and is probably the largest of this type (though 55 Pandora is only slightly smaller). Hermann Mayer Salomon Goldschmidt (June 17, 1802 – April 26, 1866) was a German astronomer and painter who spent much of his life in France. ... is the 147th day of the year (148th in leap years) in the Gregorian calendar. ... 1857 was a common year starting on Thursday (see link for calendar). ... Two bodies with a slight difference in mass orbiting around a common barycenter. ... In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. ... July 14 is the 195th day of the year (196th in leap years) in the Gregorian calendar. ... shelby was here 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... The Julian day or Julian day number (JDN) is the integer number of days that have elapsed since the initial epoch defined as noon Universal Time (UT) Monday, January 1, 4713 BC in the proleptic Julian calendar [1]. That noon-to-noon day is counted as Julian day 0. ... A diagram of Keplerian orbital elements. ... A diagram of Keplerian orbital elements. ... The semi-major axis of an ellipse In geometry, the term semi-major axis (also semimajor axis) is used to describe the dimensions of ellipses and hyperbolae. ... Look up giga- in Wiktionary, the free dictionary. ... The metre or meter is a measure of length. ... The astronomical unit (AU or au or a. ... (This page refers to eccitricity in astrodynamics. ... The orbital period is the time it takes a planet (or another object) to make one full orbit. ... Look up day in Wiktionary, the free dictionary. ... In astronomy, a Julian year is a unit of time defined as exactly 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. ... Look up second in Wiktionary, the free dictionary. ... 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. ... Inclination in general is the angle between a reference plane and another plane or axis of direction. ... A degree (in full, a degree of arc, arc degree, or arcdegree), usually symbolized °, is a measurement of plane angle, representing 1/360 of a full rotation. ... The Longitude of the ascending node (☊, also noted Ω) is one of the orbital elements used to specify the orbit of an object in space. ... The argument of periapsis (ω) is the orbital element describing the angle between an orbiting bodys ascending node (the point where the body crosses the plane of reference from South to North) and its periapsis (the point of closest approach to the central body), measured in the orbital plane and... Unsolved problems in physics: What causes anything to have mass? The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. Mass is the property of a physical object that quantifies the amount of matter and energy it is equivalent to. ... The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. It was assigned to the United States in 1889 and is periodically recertified and traceable to the primary international standard, The Kilogram, held at the Bureau International des Poids et... In physics, density is mass m per unit volume V. For the common case of a homogeneous substance, it is expressed as: where, in SI units: ρ (rho) is the density of the substance, measured in kg·m-3 m is the mass of the substance, measured in kg V is... A cubic centimetre (cm3) is an SI derived unit of volume, equal to the volume of a cube with side length of 1 centi metre. ... The surface gravity of a Killing horizon is the acceleration, as exerted at infinity, needed to keep an object at the horizon. ... Space Shuttle Atlantis launches on mission STS-71. ... In astronomy, a rotation period is the time an astronomical object takes to complete one revolution around its rotation axis. ... Albedo is the ratio of reflected to incident electromagnetic radiation. ... This article includes a list of works cited or a list of external links, but its sources remain unclear because it lacks in-text citations. ... The kelvin (symbol: K) is a unit increment of temperature and is one of the seven SI base units. ... In astronomy, absolute magnitude is the apparent magnitude, m, an object would have if it were at a standard luminosity distance away from us, in the absence of interstellar extinction. ... Articles with similar titles include the NATO phonetic alphabet, which has also informally been called the “International Phonetic Alphabet”. For information on how to read IPA transcriptions of English words, see IPA chart for English. ... 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. ... 253 Mathilde, a C-type asteroid. ... The Nysa asteroids (also known as the Hertha family or the Polana family) are a group of asteroids in the Main Belt orbiting the sun between 2. ... E-type asteroids are inner-belt asteroids that contain enstatite. ... 55 Pandora is a quite large and very bright Main belt asteroid. ...


It was discovered by H. Goldschmidt on May 27, 1857 and named after the mythical land of Nysa in Greek mythology. Hermann Mayer Salomon Goldschmidt (June 17, 1802 – April 26, 1866) was a German astronomer and painter who spent much of his life in France. ... is the 147th day of the year (148th in leap years) in the Gregorian calendar. ... 1857 was a common year starting on Thursday (see link for calendar). ... In Greek mythology, the mountainous district of Nysa, variously associated with Ethiopia, Libya, Tribalia or Arabia by Greek mythographers, was the traditional place where the rain nymphs, the Hyades, raised the infant Dionysus, the god of Nysa. ... The bust of Zeus found at Otricoli (Sala Rotonda, Museo Pio-Clementino, Vatican) Greek mythology is the body of stories belonging to the Ancient Greeks concerning their gods and heroes, the nature of the world and the origins and significance of their own cult and ritual practices. ...


The shape model constructed from the lightcurve of Nysa is conical, indicating that the asteroid may actually be a contact binary [1]. The term binary asteroid refers to a system in which two asteroids orbit their common centre of gravity, in analogy with binary stars. ...


Nysa has so far been reported occulting a star twice. 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. ... STAR is an acronym for: Organizations Society of Ticket Agents and Retailers], the self-regulatory body for the entertainment ticket industry in the UK. Society for Telescopy, Astronomy, and Radio, a non-profit New Jersey astronomy club. ...

Minor planets
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