(68719) Jangyeongsil Main-belt Asteroid
Discovered on 16 February 2002 by Y.-B. Jeon at Bohyunsan.
The fifteenth century in Korea is considered the century of scientific achievement. At the center was Jang Yeongsil (1390-1450). His scientific talent is represented in the invention of the water clock, Jagyeokru and Okru, the advancement of bronze-type printing technology and the development of astronomical instruments.Naming citation (20040306/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Jangyeongsil is today
Seen from above the solar system on 2026-10-14: Jangyeongsil is 2.21 au from the Sun and 2.20 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 68719 |
| Provisional designation | 2002 DW |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.18 km (#12,327 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0340 |
| Rotation period | 61.3 hours |
| Absolute magnitude (H) | 16.0 |
| Orbital period | 3.88 years |
| Semi-major axis | 2.47 au |
| Perihelion – aphelion | 2.21 – 2.72 au |
| Eccentricity | 0.103 |
| Inclination | 4.88° |
| Closest distance between its orbit and Earth's (MOID) | 1.20 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 February 2002
More named asteroids discovered by Y.-B. Jeon
← (68718) Safi · (68730) Straizys →