Nysa family
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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 2.41 and 2.5 AU. Asteroids in this family have eccentricities between 0.12 and 0.21 and inclinations of 1.4 to 4.3.[1] The family derives it's name from its most massive member, 44 Nysa.
[edit] Subgroups
Asteroids in the Nysa family are typically divided into two, mineralogically different subgroups: Nysa and Polana. Aside from 44 Nysa and 135 Hertha, asteroids in the Nysa subgroup are S-type asteroids. Asteroids in the Polana subgroup, like 142 Polana, are F-type asteroids. [2]
[edit] Asteroids in this Family
| Name | a | e | i |
|---|---|---|---|
| 44 Nysa | 2.423 | 0.149 | 3.703° |
| 135 Hertha | 2.428 | 0.206 | 2.306° |
| 142 Polana | 2.418 | 0.136 | 2.238° |
| 750 Oskar | 2.444 | 0.130 | 3.952° |
| 2984 Chaucer | 2.470 | 0.135 | 3.054° |
| 2391 Tomita[3] | |||
| 2509 Chukotka | |||
| 2710 Veverka | |||
| 3048 Guangzhou | |||
| 3069 Heyrovsky | |||
| 3172 Hirst | |||
| 3467 Bernheim | 2.409 | 0.149 | 4.112° |
| 3952 Russellmark | |||
| 4797 Ako | |||
| 5075 Goryachev | |||
| 5394 Jurgens | |||
| 7629 Foros | |||
| 9922 Catcheller[4] | 2.402 | 0.190 | 2.492° |
[edit] References
- ^ EasySky - Screenshots
- ^ [5.05] The puzzling case of the Nysa-Polana family finally solved ?
- ^ A. Cellino, V. Zappala, A. Doressoundiram, M. Di Martino, P. Bendjoya, E. Dotto & F. Migliorini (August 2001). "The Puzzling Case of the Nysa-Polana Family". Icarus 152: 225–237. Icarus. doi:.
- ^ Zappala, V., Ph. Bendjoya, A. Cellino, P. Farinella, and C. Froeschle (1997). Asteroid Dynamical Families.. EAR-A-5-DDR-FAMILY-V4.1. NASA Planetary Data System.
- ^ JPL Small-Body Database Browser
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