849 Ara (prov. designation: or ) is a large, metallic background asteroid, approximately in diameter, that is located in the outer region of the asteroid belt. It was discovered on 9 February 1912, by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The M-type asteroid has a short rotation period of 4.1 hours and is likely elongated in shape. It was named after the American Relief Administration (ARA) for the help given during the Russian famine of 1921–22. Orbit and classification Ara is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the outer asteroid belt at a distance of 2.5–3.8 AU once every 5 years and 7 months (2,038 days; semi-major axis of 3.15 AU). Its orbit has an eccentricity of 0.20 and an inclination of 20° with respect to the ecliptic. In addition, Ara has a low Jupiter tisserand of 3.09, just above the defined threshold of 3.0 which is used to distinguish asteroids from the Jupiter-family comets. The body's observation arc begins at the Collegio Romano Observatory in Italy on 3 July 1919, more than 6 years after its official discovery observation at Simeiz. Naming This minor planet was named after American Relief Administration (ARA), in appreciation of the help it gave during the Russian famine of 1921–22. Headed by Herbert Hoover, ARA was a relief mission after World War I to Europe which also included post-revolutionary Russia later on. The was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (). Physical characteristics In the Tholen classification as well as in the lesser known taxonomic method by Howell, Ara is a metallic M-type asteroid. This spectral type translates into the X-type in more modern asteroid taxonomic systems. In 2018 and 2019, a study using photometry from the Korea Microlensing Telescope Network and the South African Astronomical Observatory, grouped Ara into the X-type category based on the Bus–DeMeo classification. Rotation period and pole In June 1981, a rotational lightcurve of Ara was obtained from photometric observations by Alan Harris. Lightcurve analysis gave a rotation period of hours with a brightness variation of magnitude, indicative of an elongated shape (). Numerous observations have since confirmed this period. This includes Laurent Bernasconi (2004) and (2006), Davide Gandolfi (2006), Adam Marciniak (2009), Maurice Audejean (2010), and