AAVSO Alert Notice 563: Observations requested for b Per December 2016 eclipse
Active Dates: Dec. 8, 2016 – Dec. 22, 2016
Abstract:
High time-resolution observations of the bright star b Persei are requested during the next predicted eclipse or transit of the third star across the system. Well-sampled light curves can provide timing data for the orbits with much greater precision than astrometry or spectroscopy alone.
Justification:
Long time-series observations of the January 2015 transit detected multiple dips in the light curve as the third star alternately transited the A and B components and the inner rotating system. We are trying to sort out whether the third star is blocked by the inner A-B pair or the A-B pair blocks the light of the third star in each eclipse.
Requested Data Types:
Photometry
Spectroscopy Lines:
No spectroscopy lines provided
Photometry Filters:
No photometry filters provided
Comparison Stars:
No comparison stars provided
Co-Authorship
Observers are not eligible for co-authorship.
Additional Observer Input:
Not provided
Additional Submission Location:
Not provided
Forum URL
N/A
Notes:
Principal Investigator: Dr. Donald F. Collins; Imported Campaign (Alert Notice #563)