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We present detailed characterization of the extremely dusty main sequencestar TYC 8830 410 1. This system hosts inner planetary system dust (Tdust~300K) with a fractional infrared luminosity of ~1%. Mid-infrared spectroscopyreveals a strong, mildy-crystalline solid-state emission feature. TYC 8830 4101 (spectral type G9V) has a 49.5" separation M4-type companion co-moving andco-distant with it, and we estimate a system age of ~600 Myr. TYC 8830 410 1also experiences "dipper"-like dimming events as detected by ASAS-SN, TESS, andcharacterized in more detail with the LCOGT. These recurring eclipses suggestat least one roughly star-sized cloud of dust orbits the star in addition toassorted smaller dust structures. The extreme properties of the materialorbiting TYC 8830 410 1 point to dramatic dust-production mechanisms thatlikely included something similar to the giant-impact event thought to haveformed the Earth-Moon system, although hundreds of millions of years after suchprocesses are thought to have concluded in the solar system. TYC 8830 410 1holds promise to deliver significant advances in our understanding of theorigin, structure, and evolution of extremely dusty inner planetary systems.

Highly structured inner planetary system debris around the intermediate age Sun-like star TYC 8830 410 1