ROCOSes
... that although ROCOSes are visible astronomical objects, it is impossible to determine whether or not they belong to our galaxy?
... that although <b id="mwETM"><a href="./Radio_object_with_continuous_optical_spectrum" id="mwETQ" rel="mw:WikiLink" title="Radio object with continuous optical spectrum">ROCOSes</a></b> are visible <a href="./Astronomical_radio_source" id="mwETU" rel="mw:WikiLink" title="Astronomical radio source">astronomical objects</a>, it is impossible to determine whether or not they belong to <a href="./Milky_Way" id="mwETY" rel="mw:WikiLink" title="Milky Way">our galaxy</a>?