IO in Astronomy could mean:
Displaying 1-2 of 2 result(s).
Interaction Objects
in Astronomy
Interacting Object
in Astronomy

Similar to IO

AAT - Anglo Australian Telescope
AAVSO - American Association of Variable Star Observers
ABB - After the Big Bang
ABBA - ADC Backend For Bolometer Array
ABF - Astronomische Beeldverwerkings Faciliteiten
AC - Ascendant Cusp
AC - Active Coronae

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