Present status as we enter November

Home Forums Variable Stars IX Dra: observations requested Present status as we enter November

Stewart John Bean

The V filter observations graph below shows the current status as we approach an expected superoutburst in roughly two weeks time. With the frequency of observations achieved during this campaign, it should be possible to time the the superoutburst to within one day. This in turn should allow a fairly precise value for the superoutburst period to compare with literature values. The literature graph below implies a supercycle length of about 65 days for 2020 whilst  TESS results, from 2019, suggest 61 days.

The observations below may not be complete so apologies in advance. Six normal outbursts at 5 day intervals  have been recorded. The superoutburst is expected to reach 14.5 during November.

Thanks to all contributing.