A solar twin in the eclipsing binary LL Aquarii D. Graczyk, R. Smolec, K. Pavlovski, J. Southworth, G. Pietrzyński, P. F. L. Maxted, P. Konorski, W. Gieren, B. Pilecki, M. Taormina et al. (5 more) A&A, 594 (2016) A92 Published online: 19 October 2016 DOI: 10.1051/0004-6361/201628918