Unveiling the binary nature of NGC 2323 | Astronomy & Astrophysics (A&A)

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Fig. 1

2D histogram of proper motion ( $μ_{α}^{*}$ $\mu _\alpha ^*$ , µ_δ) distributions of NGC 2323. The cluster members are from Hunt & Reffert (2023). The color bar on the right represents the member number density and the black lines refer to the number density contours.

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