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This paper presents V- and g'-band observations of the F2V star KIC 8462852,which exhibited enigmatic fade patterns in Kepler mission data. We introduce atransit simulation model for interpretation of these fades, and use it tointerpret an August 2017 dip as a repeat of the Kepler day 1540 dip (D1540). Wesuggest the August 2017 and D1540 dips may be caused by a brown dwarf and anassociated ring system in a 1601-day elliptical orbit. Transiting icy moons ofthe proposed brown dwarf, sublimating near periapsis like comets, could providean explanation for the significant dips observed by Kepler, as well as therecent May to October 2017 dips and the long term variation in flux detected bySimon et al. (2017). Whereas the presence of such a ring structure isattractive for its ability to explain short term fade events, we do not addresshow such a ring system can be created and maintained. If our speculation iscorrect, a brightening of about 1-2 percent should occur during October toNovember 2017. In addition, this scenario predicts that a set of dimmingevents, similar to those in 2013 (Kepler) and in 2017 (reported here), can beexpected to repeat during October 2021 to January 2022 and a repeat of D1540should occur on 27 December 2021.

Recent Photometric Monitoring of KIC 8462852, the Detection of a Potential Repeat of the Kepler Day 1540 Dip and a Plausible Model