(801) Helvertia ( Latin: Helwerthia ) is an asteroid of the main belt , which belongs to the dark spectral class C and is part of the Evnomiya family . It was discovered on March 20, 1915 by the German astronomer Max Wolf at the Heidelberg Observatory and named after Elise Helwerth-Wolf, the mother of the discoverer [1] .
| (801) Helvetia | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | Max Wolf |
| Place of discovery | Heidelberg |
| Discovery date | March 20, 1915 |
| Alternative notation | 1915 WQ ; 1925 RG; 1970 GS 1 ; A924 OD |
| Category | Main ring ( Evnomiya Family ) |
| Orbital characteristics | |
| Age of September 4, 2017 JD 2458000.5 | |
| Eccentricity ( e ) | 0,0781165 |
| Semimajor axis ( a ) | 389.573 million km (2.6041365 AU ) |
| Perihelion ( q ) | 359.141 million km (2,4007105 AU) |
| Aphelion ( Q ) | 420.005 million km (2.8075625 AU) |
| Circulation Period ( P ) | 1534.949 days (4.202 g. ) |
| Average orbital speed | 18,429 km / s |
| Inclination ( i ) | 14.13002 ° |
| Longitude node (Ω) | 185.97267 ° |
| Perihelion Argument (ω) | 334.90873 ° |
| Median Anomaly ( M ) | 141.63015 ° |
| physical characteristics | |
| Diameter | 32,404 km |
| Rotation period | 23.93 h |
| Apparent magnitude | 16.84 m (current) |
| Absolute magnitude | 11.55 m |
| Albedo | 0,031 |
| Current distance from the sun | 2,494 a. e. |
| Current distance from earth | 3.353 a. e. |
The orbit of the asteroid Helvertsia and its position in the solar system
See also
- List of Asteroids ( 801-900 )
- Classifications of Minor Planets
- Asteroid family
Notes
- ↑ Schmadel, Lutz D. Dictionary of Minor Planet Names . - Fifth Revised and Enlarged Edition. - B. , Heidelberg, N. Y .: Springer, 2003 .-- P. 75. - ISBN 3-540-00238-3 .