AC/Spica: Wealth, fame, honour, glamour, the "Fortunate One". Spica looks like one star, but is actually two, an eclipsing binary in a tight orbit of 4 days. A planet in close conjunction to Spica is protected from the heat of the Via Combusta [23˚58 Libra]Moon/Antares: A Royal Star. The Archangel Oriel, the Watcher of the West. Spirit of adventure, obstinacy, injuries to eyes, honours, sudden loss, stubborn, suspicious, violent, several marriages. [9˚54 Sagittarius]
MC/Sirius: Ambition, pride, emotionality, fame, leadership, wealth, fires, drought, danger through impetuosity. Sirius was worshipped in many cultures; its heliacal rising signalled the peak of summer, the annual flooding of the Nile and the beginning of the ancient Egyptian calendar [14˚13 Cancer]
Pluto/Vega: Luck in politics, artistic talent, fleeting fame, double dealing, generosity, practicality. [15˚27 Capricorn]
AC/Arcturus: Inspiration, riches, fame, honour, popularity, benefits through travel, success through work. [24˚22 Libra]
Mars/Caput Algol: Primitive female sexuality ; strangulation, beheading, danger to throat and neck, murder, violence, mass catastrophe; the "Evil One", the Demon Star; passionate; intense ; hysterical. A pulsating, eclipsing double-star also associated with extreme creativity; an expression of the Dark Side… [26˚18 Taurus]
Venus/Polaris: Sickness, trouble, loss, affliction, spiritual powers. [28˚42 Gemini]
Vindemiatrix looks sketchy, but other accounts say that it is related to mysticism...
But also, Vindemiatrix isn't likely to play much of a part here, as it is a point on a point, not an actual body like a planet or luminary which have a more tangible affect... point on point feels more theoretical...
Of the others though, there are definitely some highlights relative to how you describe the encounter... I think it's important to understand the energy of the fixed star and how it would relate to the planet it conjuncts.
If something doesn't make sense, either research the meaning more (because ultimately it's an energy and is hard for us humans to translate this 'extra-terrestrial' communication into our faulty language), or don't worry about it too much, because it is just an influence on the events. The planets/luminaries tell the story.