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Table 1

High-resolution observations of V838 Mon used in the analysis of the Li I line.

Epoch Obs. date (UT) Telescope Instrument Resolution, R Reference
2005 13.10.2005 Keck HIRES 34000 1
2009 02.01, 13.02, 22.03.2009 VLT UVES 60000 2
2012 06.01.2012 VLT UVES 12000 3
2018 27.10.2018 Subaru HDS 20 000 4
2020 23.12.2020 SALT HRS 40 000 5

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