Question about fixed stars in astrology?

What's the orb for a fixed star in aspect to an angle or planet, and what aspects are used? I heard conjunctions and oppositions can be used but I'm not sure.

If so, I have mars(0 degrees pisces) in an extremely tight opposition with the fixed royal star "Regulus(29.45 degreeish Leo)". What would this mean?

Plz answer only if you know astrology. Thanks

I know little about fixed stars, but a conjunction would be more potent, I suppose. And conjunctions are the ones that are taken, since fixed stars are hardly used.

However, as you know it, Regulus is one of the best stars to have around. An opposition can either be read positively, or negatively. Perhaps you fight the royalty you may feel? OR..
obtain royalty through your Martian actions.

It can go either way; there are few articles on this subject; it's best to look for conjunctions.

Spica is conjunct my MC but by an orb of 1, so there's my username.

Too much effort in explaining you these things. If interested, read astrology books; so many in bookstores.

All of us have a Kundli, but not all of it comes true. It is a very realised thing. Because you have the right to free well, given by the lord, so it will behave on your Karma.

There are no standardized interpretations re: fixed stars and planets having astrololgical significance.