RT @ROGAstronomers: #OnThisDay 1769: transit of Venus seen by Capt Cook, followed 5 hrs later by solar eclipse rmg.co.uk/discover/explo… https://t.co/TkwOYF0l9e
RT @ROGAstronomers: #OnThisDay 1769: transit of Venus seen by Capt Cook, followed 5 hrs later by solar eclipse rmg.co.uk/discover/explo… https://t.co/TkwOYF0l9e