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Herculina is the asteroid with the number 532. It has a diameter of 222 kilometres. Herculina shall have a 46 kilometre big moon. Herculina was developed on April 20th, 1904 from Max Wolf in Heidelberg.
Orbital elements (http://cfa_www.harvard.edu/iau/Ephemerides/Bright/2003/00532.html)
Herculina is one of the twenty or so largest members of the main asteroid belt.
Recent (2002) modelling of photometric data indicates that Herculina is not spherical, but a blocky shape not unlike a battered cuboid - or, as the analysis described it, it "resembles a toaster".
Following anomalous observations during an occultation of the star SAO 1220774 in 1978, Herculina became the first asteroid to be "confirmed" to have an asteroid moon, with the parent asteroid estimated at a 216km diameter and a satellite of about 45km orbiting at a distance of around 1,000 km.
Whilst Herculina has not been studied extensively, as the data listed suggests, the asteroid 3 Juno is a close match in terms of size and composition; a guess at its physical properties may be made by assuming those listed for Juno are a reasonable approximation.
, (2001)) indicates that Herculina is not spherical, but a blocky shape not unlike a battered cuboid - or, as the analysis described it, it "resembles a toaster".
In 1978, following an occultation of a star, Herculina became the first asteroid to be thought to have a companion, with a small moonlet.
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