Discovered by M. Wolf MPC designation 1514 Ricouxa Discovered 22 August 1906 Asteroid group Asteroid belt | Discovery date 22 August 1906 Orbits Sun | |
Named after unknown(named by A. Patry) Alternative names 1906 UR · 1936 ME1939 HC · 1940 XA1970 XA · A916 OC Discovery site Landessternwarte Heidelberg-Königstuhl Similar 509 Iolanda, 528 Rezia, 417 Suevia, 540 Rosamunde, 807 Ceraskia | ||
1514 Ricouxa, provisional designation 1906 UR, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 7.5 kilometers in diameter. It was discovered on 22 August 1906, by German astronomer Max Wolf at Heidelberg Observatory in southern Germany. The origin of the asteroid's name is unknown.
Description
Ricouxa is a S-type asteroid and member of the Flora family, one of the largest collisional populations of stony asteroids in the entire main-belt. It orbits the Sun at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,225 days). Its orbit has an eccentricity of 0.20 and an inclination of 5° with respect to the ecliptic. Ricouxa's observation arc begins with its official discovery observation in 1906, as no precoveries were taken, and no prior identifications were made.
In the 1990s, Italian astronomer Maria A. Barucci obtained a rotational light-curve of Ricouxa, using the ESO 1-metre telescope at La Silla Observatory in Chile. Light-curve analysis gave a well-defined rotation period of 10.438 hours with a brightness variation of 0.62 magnitude (U=3). Photometric observations by French amateur astronomer Pierre Antonini in April 2006, gave a similar period of 10.033 hours and an identical amplitude of 0.62 magnitude (U=2+). Additional periods were derived on modeled light-curves from various data sources. They gave a period of 10.42466 and 10.42468 hours, as well as a spin axis of (0°, 71.0°) and (251.0°, 75.0°) in ecliptic coordinates, respectively.
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Ricouxa measures 7.78 kilometers in diameter, and its surface has an albedo of 0.228 (revised albedo-fits per 2014), while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – taken from 8 Flora, the family's principal body and namesake – and derives a diameter of 7.07 kilometers based on an absolute magnitude of 12.92.
This minor planet was named by French astronomer André Patry (1902–1960), after whom the asteroid 1601 Patry is named. However, any reference to a person or occurrence for the name Ricouxa remains unknown (also see Category:Minor planets with names of unknown origin). Naming citation was first mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 135).