Asteroid 3421 (1975 WK1) (Yang Zhenning) is a primary astronomical as found by China Zikinshan Observatory on November 26, 1975 in Nanjing.
25. května 1997 pojmenovala Zikinshanská observatoř mezinárodní číslo mezinárodního čísla 3421 pojmenované „Yang Zhenning Star“, aby ocenila vědecký přínos fyzika Yang Zhenninga.
| Discover | ||||
|---|---|---|---|---|
| Find Articles | Zikinshan Observatory | |||
| Discovery | Nanjing | |||
| Discovery Date | November 26, 1975 | |||
| No. | MPC Number | 3421 | ||
| Other Name | 1975 WK1 | |||
| Track Parameter | ||||
| Class 2008 May 14, 2008 | ||||
| Outstanding Day | 2.4398937 | Recent point | 2.0271381 | Centrifugal rate | 0.0924004 |
| 1219.2197806 | 248.42997 | |||
| 2.46321 | ||||
| Laptos Point Caucasus | 243.76458 | |||
| 205.19998 | ||||
| absolute Star et al. (H) | 13.5 |
