"App helps [amateur] astronomers _polar align_ their equatorial mounts."

[Wilson Gray]

[Hyphenate!]

Somehow,

"… helps align their equatorial mounts polarly"

is no better.:-)

OTOH, given that the kind of structure cited is commonplace in any
number of other, "primitive" languages, the updating of English is
past due.;-)

--
-Wilson
-----
All say, "How hard it is that we have to die!"---a strange complaint
to come from the mouths of people who have had to live.
-Mark Twain

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The American Dialect Society - http://www.americandialect.org