# 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

@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 Franccois Mignard and Antoine M'erand and Fr'ed'eric Th'evenin},
journal={Astronomy and Astrophysics},
year={2016},
volume={594}
}
• Published 1 October 2016
• Physics
• Astronomy and Astrophysics
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…
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