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Tried to find data for a 'mini-nova'.
* The closest I got was a 'dwarf novae' ( eruptive variable ), and 'nova-like' variables ( eruptive variables ), both, are binary 'cataclysmic variables.'
* The context of these phenomena are that, ' it is the binary structure of cataclysmic variables which is the essential' ingredient in producing nova outburts.' Ronald Webbink, Professor of Astronomy, University of Illinois Urbana-Champaign, trained at MIT, and University of Cambridge.
* It's impossible for a main sequence star like our Sun to produce a nova.
* Only a main sequence star with a binary companion star, like a white dwarf can produce such a phenomena.
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* The Milky Way produces about 25-35 novae a year.
* Only a fraction are visible to the naked eye, @ magnitude 4.5, or brighter.
* In a typical outburst, the star system brightens, then ejects a shell.