Word for "Can't be seen with the naked eye"?

I'm wondering if there is a word to describe something that cannot be seen with the naked eye.

'Microscopic' is the first that springs to mind, but this has too many 'science-y' connotations.
It also implies that the subject is very very tiny, whereas I need a word to describe an object that might not be visible for any reason, for example, it's very far away or is obscured.

'Invisible' is not appropriate as it implies that the subject possesses some sort of magical powers...

Is there a word or short phrase to describe an object that cannot be seen with the naked eye - for whatever reason?

A word to describe an object that might not be visible for any reason, i.e., it's very far away or obscured

Indiscernible or imperceptible (to the naked or unaided eye)

indiscernible adjective: difficult or impossible to discern or perceive; imperceptible; "an indiscernible increase in temperature." TFD indiscernible

You could just say "not visible". I agree that "invisible" has a connotation as being an inherent property of the object, either science fiction-y or magical. "Not visible" means exactly the same thing, but doesn't put the burden so squarely on the object itself - it could be dark out, underground, behind a wall, etc.

If you want to be as straightforward as possible, there's unseen:

not seen or able to be seen (Merriam-Webster)

Undetectable is an option, but this generally also assumes that one cannot hear/smell it either.

Undetectable - not able to be perceived, noticed, or discovered

Collins Dictionary