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5426 SHARP: A PROBABLE HUNGARIA BINARY.

Brian D Warner1, Vladimir Benishek2, Andrea Ferrero3

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Summary
This summary is machine-generated.

Observations suggest the Hungaria asteroid 5426 Sharp may be a binary system. Further study revealed two distinct rotation periods, indicating a probable, but not confirmed, binary nature.

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Area of Science:

  • Astronomy
  • Planetary Science
  • Asteroid Research

Background:

  • Asteroid 5426 Sharp, a Hungaria asteroid, was observed using CCD photometry.
  • Initial lightcurve data suggested potential binary system characteristics.

Purpose of the Study:

  • To investigate the possibility of asteroid 5426 Sharp being a binary system.
  • To determine the rotation periods and amplitudes of lightcurve variations.

Main Methods:

  • Conducted CCD photometry observations in December 2014 and January 2015.
  • Established international collaboration for extended observational coverage.
  • Analyzed lightcurve data to identify periodic signals.

Main Results:

  • Identified two distinct periods: P = 4.5609 ± 0.0003 hours and P = 24.22 ± 0.02 hours.
  • Associated amplitudes were A = 0.18 ± 0.01 mag and A = 0.08 ± 0.01 mag.
  • No mutual events (occultations or eclipses) were observed.

Conclusions:

  • Asteroid 5426 Sharp is considered a probable binary system based on the detected periods.
  • The absence of mutual events prevents confirmation as a binary system.