(21655) Niklauswirth
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Asteroid (21655) Niklauswirth |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Eunomia family |
| Major semi-axis | 2.6466 AU |
| eccentricity | 0.1782 |
| Perihelion - aphelion | 2.1749 AU - 3.1184 AU |
| Inclination of the orbit plane | 13.4135 ° |
| Sidereal period | 4.31 a |
| Mean orbital velocity | 18.31 km / s |
| Physical Properties | |
| Absolute brightness | 13.3 mag |
| history | |
| Explorer | Lenka Sarounová |
| Date of discovery | August 8, 1999 |
| Another name | 1999 PC 1 , 1998 MC 27 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(21655) Niklauswirth is an asteroid of the main belt that was discovered on August 8, 1999 by the Czech astronomer Lenka Sarounová at the Ondřejov observatory ( IAU code 557) on Mount Manda in Ondřejov in the Czech Republic .
The asteroid was named after the Swiss computer scientist Niklaus Wirth (* 1934). The Turing Prize winner taught from 1984 to 1999 at the Swiss Federal Institute of Technology in Zurich as a professor of computer science , where he developed the programming languages Pascal , Modula-2 and Oberon and the computer systems Lilith and Ceres .
See also
Web links
- Asteroid Niklauswirth: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (21655) Niklauswirth in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (21655) Niklauswirth in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).