A Discovery of Stellar Duplicity During an Occultation by Asteroid (324) Bamberga

Authors

  • Andrew Wendelborn ASSA (Astronomical Society of South Australia) https://orcid.org/0009-0000-8245-5540
  • David Gault Trans Tasman Occultation Alliance (TTOA)
  • Joe Grida
  • Colin Hurst ASSA (Astronomical Society of South Australia)
  • Blair Lade
  • Paul Martinaitis ASSA (Astronomical Society of South Australia)
  • Paul Montague
  • Rosemary Prentice
  • Jarrod Rueff

Keywords:

binary star, asteroid occultation

Abstract

On 13 May 2025, an occultation of the star TYC 6717-00974-1 (Gaia DR3 ID 6193195991606404480) by the main-belt asteroid (324) Bamberga revealed that this was in fact a binary star. The distance between the two components was determined to be 0.002″ ± 0.0007″, with the position angle computed as 12.8° ± 26.8° and separation as approximately 0.8 AU.

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Published

2026-07-04