Gotha Observatory
... that in the late 18th century, the Gotha Observatory became an international center for astronomy, and the most modern astronomical institute specifically for its instruments?
... that in the late 18th century, the <b id="mwC-8"><a href="./Gotha_Observatory" id="mwC_A" rel="mw:WikiLink" title="Gotha Observatory">Gotha Observatory</a></b>  became an international center for <a href="./Astronomy" id="mwC_E" rel="mw:WikiLink" title="Astronomy">astronomy</a>, and the most modern astronomical institute specifically for its instruments?