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Table 4

Maximum apparent displacement δθ± and amplification A± of the two images of S stars formed by the gravitational lens during the conjunctions with α Cen A and B.

Date L a S b θLD[mas] φ[km] ρmin [″] δθ+ [mas] A+ [%] δθ [mas] A [%]

2021-05-03 B S1 0.0120.002 2400400 0.205 ± 0.177
2023-04-27 A S2 0.0250.003 5000600 1.643 ± 0.112 100
2023-12-12 B S3 0.0180.002 3600400 1.354 ± 0.186 100
2024-10-26 B S4 0.0080.003 1600600 2.433 ± 0.119 100
2028-05-06 A S5 0.470.05 9500010000 0.015 ± 0.135
2031-05-25 B S6 0.0100.003 2000600 0.269 ± 0.277

Notes. The displacements are relative to the non-deflected (pre-lensing) positions. We also list the angular sizes θLD of the S stars, and their projected linear diameters φ at α Centauri. The error bars are given in super/subscripts position next to each value.


L is the lens (one of the α Cen components).


S is the lensed source (S stars).

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