The Koronis family is a family of asteroids in the Main Belt between Mars and Jupiter. They are thought to have have been formed at least two billion years ago in a catastrophic collision between two larger bodies. All are between 20 - 40 km (12 to 26 miles) in diameter and travel in a cluster along the same orbit.[1] 253 Mathilde, a C-type asteroid. ... For details on the physical properties of bodies in the asteroid belt see Asteroid and Main-belt comet. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... Adjectives: Jovian Atmosphere Surface pressure: 20–200 kPa[4] (cloud layer) Composition: ~86% Molecular hydrogen ~13% Helium 0. ...
On August 28, 1993, the Galileo spacecraft visited a member of this family, 243 Ida. August 28 is the 240th day of the year (241st in leap years) in the Gregorian calendar. ... Year 1993 (MCMXCIII) was a common year starting on Friday (link will display full 1993 Gregorian calendar). ... Galileo is prepared for mating with the IUS booster Galileo being deployed after being launched by the Space Shuttle Atlantis on the STS-34 mission Galileo was an unmanned spacecraft sent by NASA to study the planet Jupiter and its moons. ... NASA image of 243 Ida. ...
DIAMETER is an AAA protocol (Authentication, Authorization and Accounting) succeeding its predecessor RADIUS. // The name is a pun on the RADIUS protocol, which is the predecessor (a diameter is twice the radius). ... 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. ... Inclination in general is the angle between a reference plane and another plane or axis of direction. ... (This page refers to eccitricity in astrodynamics. ... 158 Koronis (kuh ROE niss) is a Main belt asteroid. ... 1876 (MDCCCLXXVI) was a leap year starting on Saturday. ... 167 Urda is a Main belt asteroid. ... 1876 (MDCCCLXXVI) was a leap year starting on Saturday. ... 208 Lacrimosa is a Main belt asteroid. ... 1879 (MDCCCLXXIX) was a common year starting on Wednesday (see link for calendar). ... NASA image of 243 Ida. ... Year 1884 (MDCCCLXXXIV) was a leap year starting on Tuesday (link will display the full calendar) of the Gregorian calendar (or a leap year starting on Sunday of the 12-day-slower Julian calendar). ... 263 Dresda is a typical Main belt asteroid. ... Year 1886 (MDCCCLXXXVI) was a common year starting on Friday (link will display the full calendar) of the Gregorian calendar (or a common year starting on Sunday of the 12-day slower Julian calendar). ... 277 Elvira is a typical Main belt asteroid and a member of the Koronis asteroid family. ... Year 1888 (MDCCCLXXXVIII) was a leap year starting on Sunday (click on link for calendar) of the Gregorian calendar (or a leap year starting on Tuesday of the 12-day slower Julian calendar). ... 311 Claudia is a typical Main belt asteroid. ... Year 1891 (MDCCCXCI) was a common year starting on Thursday (link will display the full calendar) of the Gregorian calendar (or a common year starting on Saturday of the 12-day slower Julian calendar). ... 321 Florentina is a typical Main belt asteroid. ... Year 1891 (MDCCCXCI) was a common year starting on Thursday (link will display the full calendar) of the Gregorian calendar (or a common year starting on Saturday of the 12-day slower Julian calendar). ... 534 Nassovia 534 Nassovia is a minor planet orbiting the Sun. ... 1904 (MCMIV) was a leap year starting on a Friday (see link for calendar). ... 720 Bohlinia 720 Bohlinia is a minor planet orbiting the Sun. ... Year 1911 (MCMXI) was a common year starting on Sunday (link will display the full calendar) of the Gregorian calendar (or a common year starting on Saturday of the 13-day-slower Julian calendar). ... 1223 Neckar is and asteroid in the Main belt and a member of the Koronis Family of asteroids. ... Year 1931 (MCMXXXI) was a common year starting on Thursday (link will display full 1931 calendar) of the Gregorian calendar. ...
Groups are relatively loose dynamical associations, whereas families are much "tighter" and result most probably from the catastrophic breakup of a large parent asteroid sometime in the past.
Koronis asteroids have a semi-major axis between 2.83 AU and 2.91 AU, an eccentricity less than 0.11, and an inclination less than 3.5°.
Karin asteroids are a sub-family of the Koronisfamily; they number 39, the most prominent being 832 Karin.
A Hirayama family of asteroids in the outer part of the main asteroid belt orbiting at mean distances of 2.82 to 2.95 AU from the Sun.
Mainly of S-class (silicaceous), with similar colors and albedos, these objects are all believed to have originated in the breakup of a single, highly homogenous parent body, some 100 km in diameter.
The family is named after (158) Koronis, the first member to be found, in 1876 by the German astronomer Victor Knorre (1840-1919).
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