(6) Haba ( lat. Hebe ) is one of the largest asteroids of the main ring, and possibly the source of H-chondritic meteorites, which account for 40% of all meteorites colliding with the Earth.
(6) Hebe  | |
|---|---|
| Asteroid | |
 | |
| Opening | |
| Discoverer | Karl Henke |
| Detection point | |
| Date of discovery | July 1, 1847 |
| Alternative designations | 1947 JB |
| Category | Main ring |
| Orbital characteristics [1] | |
| The Age of November 26, 2005 JD 2453700.5 | |
| Eccentricity ( e ) | 0.202 |
| Semi-axis ( a ) | 362.924 million km (2,426 A. e. ) |
| Perihelion ( q ) | 289.614 million km (1,936 a. E.) |
| Afhelia ( Q ) | 436.235 million km (2.916 a. E.) |
| Period of circulation ( P ) | 1380,176 days (3,779 g. ) |
| Average orbital speed | 18.926 km / s |
| Inclination ( i ) | 14.751 ° |
| Ascending node longitude (Ω) | 138.752 ° |
| Perihelion Argument (ω) | 239.492 ° |
| Mean Anomaly ( M ) | 247.947 ° |
| physical characteristics | |
| Diameter | 185.18 km |
| Weight | 1.37⋅10 19 kg [2] |
| Density | 4.1 g / cm³ [2] |
| Acceleration of gravity on the surface | 0.087 m / s² |
| 2nd cosmic speed | 0.13 km / s |
| Rotation period | 7.27 h |
| Spectral class | S |
| Apparent magnitude | 11.12 m (current) |
| Absolute magnitude | 5.71 m |
| Albedo | 0.2679 |
| Average surface temperature | ~ 170 K max: ~ 269 K (-4 ° C ) |
| Current distance from the Sun | 2,671 a. e. |
| Current distance from Earth | 3.629 a. e. |
Content
Opening
Hebe was the sixth open asteroid . It was discovered by Karl Ludwig Henke on July 1, 1847 . It was the second and last asteroid discovered by him, the first was 5 Astrea . The name "Hebe" was suggested by Karl Friedrich Gauss , and goes back to Greek mythology . Hebe , the goddess of youth, served as the butler of the gods of Olympus , until she married Heracles , after which the trojan prince Ganymede became the butler.
Literature
- Supplemental IRAS Minor Planet Survey
- Small Bodies Node, lightcurve parameters
- R. Johnston Other reports of Asteroid / TNO Companions (inaccessible link - story ) .
- J. Torppa et al Shapes and asteroids from photometric data , Icarus, Vol. 164, p. 346 (2003).
- G. Mickalak Determination of asteroid masses (inaccessible link) . Archived March 7, 2006. Astronomy & Astrophysics, Vol. 374, p. 703 (2001).
- MJ Gaffey & SL Gilbert Asteroid 6 Hebe: The Metallic & Meteoritics & Planetary Science, Vol. 33, p. 1281 (1998).
- A. Morbidelli et al., Delivery of meteorites through the ν 6 secular resonance , Astronomy & Astrophysics, Vol. 282, p. 955 (1994).
See also
- List of asteroids ( 1—100 )
- Small Planet Classifications
Notes
- ↑ JPL Small-Body Database Browser: 6 Hebe. The appeal date is October 11, 2008. Archived on February 11, 2012.
- ↑ 1 2 Determination of asteroid masses. Astronomy & Astrophysics. 2001. . The appeal date is October 11, 2008. Archived on February 11, 2012.
Links
- Asteroid shape model
- MNRAS 7 (1847) 283 (announcement)
- MNRAS 8 (1848) 103