Discovered by R. Luther Alternative names 1925 WH Aphelion 464.908 Gm (3.108 AU) Discovered 5 October 1855 Spectral type S-type asteroid Asteroid group Asteroid belt | Discovery date October 5, 1855 Minor planet category Main belt Perihelion 325.340 Gm (2.175 AU) Orbits Sun Discoverer Robert Luther Named after Fides | |
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Similar Robert Luther discoveries, Other celestial objects | ||
Asteroid 37 fides in taurus video from starhoo observatory
37 Fides (/ˈfaɪdiːz/ FY-deez) is a large main-belt asteroid. It was discovered by German astronomer Karl Theodor Robert Luther on October 5, 1855, and named after Fides, the Roman goddess of loyalty. Fides was the last of the main-belt asteroids to be assigned an iconic symbol. 37 Fides is also a S-type asteroid in the Tholen classification system.
Photometric observations of this asteroid at multiple observatories during 1981–82 gave an unusual light curve with three minima and maxima. The curve changed with varying phase angle of the asteroid relative to the viewer and the position of the Sun, indicating the changing influence of shadows cast by surface features. The composite light curve has a best fit period estimate of 7.33 hours. Austrian astronomer Hans Josef Schober has suggested that the multiple minima and maxima during each period may be an indication of a binary nature.