This 1824 bronze work by Francois-Joseph Bosio is entitled "Hercules fighting Achelous transformed into a snake". It depicts a naked Hercules grasping a giant snakewith his left hand as he is about to bash the creature with a large rock in his right hand.
Wikipedia (
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"In Greek mythology, Achelous ... was the patron deity of the "silver-swirling" Achelous River, which is the largest river of Greece, and thus the chief of all river deities, every river having its own river spirit. His name is pre-Greek, its meaning unknown. The Greeks invented etymologies to associate it with Greek word roots (one such popular etymology translates the name as "he who washes away care"). However, these are etymologically unsound and of much later origin than the name itself."
and adds for Hercules (
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Hercules is the Roman name for the Greek divine hero Heracles, who was the son of Zeus (Roman equivalent Jupiter) and the mortal Alcmene. In classical mythology, Hercules is famous for his strength and for his numerous far-ranging adventures.
The Romans adapted the Greek hero's iconography and myths for their literature and art under the name Hercules. In later Western art and literature and in popular culture, Hercules is more commonly used than Heracles as the name of the hero. Hercules was a multifaceted figure with contradictory characteristics, which enabled later artists and writers to pick and choose how to represent him. This article provides an introduction to representations of Hercules in the later tradition."
As for the asteroid, Wikipedia (
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"532 Herculina ... is a large asteroid, with a diameter of around 225 km.
Discovery
It was discovered on April 20, 1904, by Max Wolf in Heidelberg, and initially catalogued as 1904 NY. The origin of its name is not known; it may be named after the mythical Hercules, or after an unknown woman of that name. The bulk of the asteroids discovered by Wolf around this date were named for characters in operas, but if this name was also drawn from such a source, no explanation has been recorded.
Physical characteristics
Herculina is one of the larger members of the main asteroid belt. It is believed to rank among the top 20 in size, but the exact dimensions of many large asteroids are still uncertain. The current estimate for its mass would rank it close to the top 10.
It has often been noted for its complex lightcurves, which made determination of its shape and rotation somewhat difficult. A set of 1982 speckle interferometry observations led to a simple preliminary model of Herculina as a three-axis object, perhaps 260 by 220 by 215 km. 1985 analysis of this data concluded there was a nonspherical shape with one bright spot, whilst a 1987 photometric astrometry study concluded the object was spherical with two dark spots (and rotated around a completely different pole), which was in turn negated by a 1988 thermal study which showed the object could not be spherical. By the late 1980s, the generally accepted model was a three-axis object with major albedo or topographical features.
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". This analysis indicates the presence of multiple largish craters, similar to 253 Mathilde, but no major variation in albedo. The approximate ratios of the axes were suggested as 1:1.1:1.3, broadly consistent with earlier models if slightly more elongated."