(145453) 2005 RR43

Discovery

2005 RR₄₃ was discovered by astronomers Andrew Becker, Andrew Puckett and Jeremy Kubica on 9 September 2005, during observations for the Sloan Digital Sky Survey.^[11][12] The discovery observations were made using the 2.5-meter telescope at Apache Point Observatory in Sunspot, New Mexico.^[12] The discoverers further observed 2005 RR₄₃ until December 2005.^[12] The team's discovery of 2005 RR₄₃ alongside several other trans-Neptunian objects was announced by the Minor Planet Center (MPC) on 31 August 2006.^[12] On the following day, the MPC reported pre-discovery detections of 2005 RR₄₃ in 2001–2002 observations by Palomar Observatory's Near-Earth Asteroid Tracking program.^[13] Since then, 2005 RR₄₃ has been found in even earlier observations by the Siding Spring Observatory; these include Digitized Sky Survey images from November 1976, August 1982, and October 1983.^[11][14]

Number and name

This object has the minor planet provisional designation 2005 RR₄₃, which was given by the MPC in the discovery announcement.^[12] The provisional designation indicates the year and half-month of the object's discovery date.^[15] 2005 RR₄₃ received its permanent minor planet catalog number of 145453 from the MPC on 5 December 2006.^[16] The Kuiper belt objects 145451 Rumina and 145452 Ritona directly come before 2005 RR₄₃'s number in the minor planet catalog.^[16]

2005 RR₄₃ does not have a proper name and the discoverers' privilege for naming this object expired ten years after it was numbered.^{[11][17]: 6 } According to naming guidelines by the International Astronomical Union's Working Group for Small Bodies Nomenclature, 2005 RR₄₃ is open for name suggestions that relate to creation myths, as recommended for Kuiper belt objects in general.^{[17]: 8 }