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(51356) 2000 RY76: A NEW HUNGARIA BINARY.

Brian D Warner1, Donald P Pray2

  • 1Palmer Divide Observatory, 17995 Bakers Farm Rd., Colorado Springs, CO 80908.

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|May 28, 2020
PubMed
Summary
This summary is machine-generated.

The Hungaria asteroid (51356) 2000 RY76 has been identified as a binary system. Analysis reveals a primary rotation period of approximately 2.56 hours and a satellite orbital period of 62.05 hours.

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Area of Science:

  • Astronomy and astrophysics
  • Solar system exploration

Background:

  • The Hungaria asteroids are a population of near-Earth asteroids.
  • Understanding asteroid systems aids in comprehending solar system formation and evolution.

Purpose of the Study:

  • To analyze photometric observations of asteroid (51356) 2000 RY76.
  • To determine the rotational and orbital characteristics of asteroid (51356) 2000 RY76 and its potential satellite.

Main Methods:

  • CCD photometric observations were conducted in October and November 2012.
  • Lightcurve analysis was performed to identify periodic variations.
  • Mutual event depths were used to estimate the satellite-to-primary diameter ratio.

Main Results:

  • Asteroid (51356) 2000 RY76 exhibits characteristics of a binary system.
  • The primary component has a likely rotation period of 2.5572 ± 0.0001 hours.
  • The orbital period of the satellite is determined to be 62.05 ± 0.05 hours.
  • The estimated satellite-to-primary diameter ratio is Ds/Dp ≥ 0.21 ± 0.02.

Conclusions:

  • Asteroid (51356) 2000 RY76 is confirmed as a binary asteroid.
  • The determined periods provide crucial data for dynamical models of small solar system bodies.
  • The size ratio offers insights into the formation and history of this binary system.