You can't but a spirit's search power does exactly that.

Not really. You can use Search on anything you have a mental description of. So, while you could use an aura, you could also use security camera footage. Seeing your aura doesn't make you any more vulnerable than seeing your face.

Right, the aura is not needed, but it is not clear whether video footage works. You need a mental image of the target, technically a video feed can only generate a mental image of the video image of the target. Not sure if that is enough.

All you need is a mental description. You can describe a book in a library, for example, and that works even if you haven't seen the book. You can also use a photograph.

Basically, having your aura seen is no more dangerous than having your face caught on film. In some ways, it's less dangerous, since you can't hand out mug shots of someone's aura or search for it on the Matrix.

Barring astral photography natch

If you are being astrally photographed, you have more problems then the mage chasing you. Especially if you are on the run at the time.

Yeah, you'd have to be standing perfectly still for like... what is it, 10 minutes? 1 minute at the very least. If you're doing that, you've likely already been caught.

I recently checked it. It is 30 min, but the person only has to remain within the camera's field of view.

Which is still quite a while in a single place where an enemy is observing you. I think that still falls a bit under 'if they've got this of you, they've already captured you'.

Still won't do much. Hand it out to the 95% of the population that's mundane, all they'll be able to do is say:"Whoa, cool colors."

99% Mundanes.