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ASTEROID LIGHTCURVE ANALYSIS AT CS3-PALMER DIVIDE STATION: 2014 DECEMBER - 2015 MARCH.

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Updated: Dec 20, 2025

Scattering And Absorption of Light in Planetary Regoliths
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THE HUNGARIA ASTEROID 4868 KNUSHEVIA: A POSSIBLE BINARY.

Brian D Warner1, Robert D Stephens2

  • 1Center for Solar System Studies / MoreData!, 446 Sycamore Ave., Eaton, CO 80615 USA.

The Minor Planet Bulletin
|May 27, 2020
PubMed
Summary
This summary is machine-generated.

Astronomers observed asteroid 4868 Knushevia, finding evidence it may be a binary asteroid. This discovery suggests a potential companion with a distinct orbital period and size ratio.

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Area of Science:

  • Asteroid Science
  • Photometry
  • Binary Asteroid Research

Background:

  • Hungaria asteroids are a dynamically interesting group.
  • Asteroid 4868 Knushevia is a member of the Hungaria asteroid family.
  • Understanding asteroid composition and structure is crucial for solar system formation studies.

Purpose of the Study:

  • To investigate the physical characteristics of asteroid 4868 Knushevia.
  • To determine if asteroid 4868 Knushevia exhibits binary behavior.
  • To analyze photometric data for rotational and mutual event signatures.

Main Methods:

  • Conducted Charge-Coupled Device (CCD) photometry observations.
  • Analyzed light curve data for periodicity and variations.
  • Applied models for binary asteroid systems.

Main Results:

  • Detected a primary rotational period of 3.4122 ± 0.0001 hours.
  • Identified a potential secondary period of 11.922 ± 0.003 hours.
  • Estimated an effective size ratio (D) of ≥ 0.13 ± 0.03, consistent with binary asteroid models.

Conclusions:

  • Asteroid 4868 Knushevia shows strong indications of being a binary asteroid.
  • The observed mutual events (occultations/eclipses) support the binary hypothesis.
  • The findings align with established models of binary asteroid formation and dynamics.