801 Helwerthia

801 Helwerthia

Discovery
Discovered by	Max Wolf
Discovery site	Heidelberg
Discovery date	March 20, 1915
Designations
Alternative names	1915 WQ; A924 OD; 1925 RG; 1970 GS1
Orbital characteristics
Epoch August 18, 2005 (JDCT 2453600.5)
Aphelion	2.804 AU
Perihelion	2.407 AU
Semi-major axis	2.606 AU
Eccentricity	0.076
Orbital period	4.206 a
Mean anomaly	191.401°
Inclination	14.100°
Longitude of ascending node	186.140°
Argument of perihelion	333.763°

801 Helwerthia is a C-type asteroid orbiting in the Main belt near the Eunomia family. However, it is not a family member but an un-related interloper in the region because its composition is inconsistent with membership. Its diameter is about 33 km, its albedo around 0.038^[1].

References

1. Supplemental IRAS Minor Planet Survey

External links

• Discovery Circumstances: Numbered Minor Planets