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Table A.2

Spectral classification and Gaia DR3 data for astrometric non-members in the field of NGC 7790, for which we have spectra.

ID Name Spectral Type G (mag) pmRA (mas/a) pmDec (mas/a) ϖ (mas)
1079 GSC 04281–02486 B4 Ve 12.58 −3.33 ± 0.02 −1.82 ± 0.02 0.38 ± 0.02
1015 TYC 4281-1704-1 B6 IVp 12.57 −2.92 ± 0.01 −1.91 ± 0.01 0.29 ± 0.01

1360 QX Cas B0.5 V 10.12 −2.93 ± 0.02 −1.83 ± 0.02 0.27 ± 0.02
586 LS I +60°63 B1.5 V 10.97 −3.05 ± 0.02 −1.83 ± 0.02 0.31 ± 0.02

615 GSC 04281–02439 A2 V 13.11 −1.73 ± 0.01 −1.65 ± 0.01 0.38 ± 0.01

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