A ROM tester made for measuring heavenly bodies (10)

I believe the answer is:

astrometer

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'measuring heavenly bodies' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'a rom tester made' is the wordplay.
'made' is an anagram indicator.
'rom'+'tester'='romtester'
'romtester' with letters rearranged gives 'strometer'.
'a'+'strometer'='ASTROMETER'

'for' is the link.

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I've seen this clue in the Sydney Morning Herald.

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