And Sydney is in the band of totality but near its southern edge, a bit further north at say Newcastle would be closer its centre. The path of the eclipse will be from the NW, moving to the south-east of the country. I've seen (well experienced) one, 200km south of Canberra, in the mid-seventies. It was overcast, but you certainly knew it was happening, and the 'shadow' of totality was still obvious.