[PDF] Close stellar conjunctions of α Centauri A and B until 2050 - An mK = 7.8 star may enter the Einstein ring of α Cen A in 2028 | Semantic Scholar
@article{Kervella2016CloseSC,
title={Close stellar conjunctions of $\alpha$ Centauri A and B until 2050 - An mK = 7.8 star may enter the Einstein ring of $\alpha$ Cen A in 2028},
author={Pierre Kervella and Pierre Kervella and François Mignard and Antoine M{\'e}rand and Fr{\'e}d{\'e}ric Th{\'e}venin},
journal={Astronomy and Astrophysics},
year={2016},
volume={594},
url={https://api.semanticscholar.org/CorpusID:55865290}
}The rapid proper motion of the α Cen pair (≈ 3.7 arcsec yr −1) and its location close to the galactic plane on a rich stellar background combine constructively to make them excellent candidates for close stellar conjunctions with more distant stars. Adding new differential astrometry to archival data, we have refined the orbital parameters, barycentric proper motion and parallax of α Cen and compute its apparent trajectory on sky over the coming decades. Based on NTT/SUSI2, NTT/SOFI and VLT…