690 Wratislavia
From Wikipedia, the free encyclopedia
| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | October 16, 1909 |
| Designations | |
| Alternative names | 1909 HZ |
| Orbital characteristics | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Aphelion | 3.722 AU |
| Perihelion | 2.560 AU |
| Semi-major axis | 3.141 AU |
| Eccentricity | 0.185 |
| Orbital period | 5.567 a |
| Mean anomaly | 65.091° |
| Inclination | 11.283° |
| Longitude of ascending node | 253.332° |
| Argument of perihelion | 115.678° |
| Physical characteristics | |
| Dimensions | 146.21 ± 11.02[1] km |
| Mass | (1.28 ± 0.03) × 1019[1] kg |
| Mean density | 7.81 ± 1.77[1] g/cm3 |
|
| |
690 Wratislavia is a minor planet orbiting the Sun. Wratislavia was discovered on October 16, 1909.[2] IRAS data shows it is about 135 km in diameter.[2]
Asteroid 690 Wratislavia (apparent magnitude 12.9) near the galaxy NGC 6941.
Wratislavia has been studied by radar.[3]
References
- ↑ 1.0 1.1 1.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98-118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ↑ 2.0 2.1 "JPL Small-Body Database Browser: 690 Wratislavia (1909 HZ)". 2005-03-11 last obs. Retrieved 2009-10-17.
- ↑ "Radar-Detected Asteroids and Comets". NASA/JPL Asteroid Radar Research. Retrieved 2011-10-30.
External links
- Discovery Circumstances: Numbered Minor Planets
- Orbital simulation from JPL (Java) / Ephemeris
- Rotational Period Determination of 690 Wratislavia
| |||||
| ||||||||||||||||||||||
This article is issued from Wikipedia. The text is available under the Creative Commons Attribution/Share Alike; additional terms may apply for the media files.