Table 1: Schmidt plates used in the Alpha Per study.

Plate no.	Material	Emulsion	Filter	Field no.	Epoch	Exposure	Plate Centre		Notes
						Time	RA	Dec
						(minutes)	B1950
3623	3 mm glass	IIIaJ	GG385	155	1990.796	60	3 18 00	+55 00 00	BJ Plate
2730	3 mm glass	IIIaJ	GG385	199	1989.697	60	3 00 00	+50 00 00	''
2738	3 mm glass	IIIaJ	GG385	200	1989.700	60	3 30 00	+50 00 00	''
2718	3 mm glass	IIIaJ	GG385	248	1989.689	60	3 16 00	+45 00 00	''
2843	3 mm glass	IIIaF	RG610	155	1989.774	60	3 18 00	+55 00 00	2nd epoch R
2822	3 mm glass	IIIaF	RG610	199	1989.767	60	3 00 00	+50 00 00	''
2832	3 mm glass	IIIaF	RG610	200	1989.769	60	3 30 00	+50 00 00	''
2817	3 mm glass	IIIaF	RG610	248	1989.763	60	3 16 00	+45 00 00	''
5498	film	IVN	RG9	155	1993.772	60	3 18 00	+55 00 00	I Plate
6569	film	IVN	RG9	199	1995.875	60	3 00 00	+50 00 00	''
4388	film	IVN	RG9	200	1991.952	60	3 30 00	+50 00 00	''
6057	film	IVN	RG9	248	1994.919	60	3 16 00	+45 00 00	''
1231	3 mm glass	103a	E	1232	1954.742	50	3 17 00	+54 21 00	1st epoch R
845	3 mm glass	103a	E	845	1953.769	45	3 30 20	+48 19 00	''
1249	3 mm glass	103a	E	1249	1954.761	50	2 56 30	+48 22 20	''