Appendix D. Dekker Specifications

Dekker Setting	Diameter		Separation		Diagram of Dekker	Intended Function
	mm	"	mm	"
7						Step wedge (10 steps each 2mm wide)
12	1.5	10.0	3.0	20		Double star apertures
15	1.125	7.5	3.0	20
18	0.75	3.8	3.0	20
21	0.45	3.0	3.0	20
24	0.30	2.0	3.0	20
27	0.15	1.0	3.0	20
30					(   --)  (--   )	Special
33	1.125	7.5				Single star apertures
36	0.75	3.8
39	0.45	3.0
42	0.30	2.0
45	0.15	1.0
50						Clear aperture
56	0.15	1.0				82 cm camera star
57	0.20	1.34
58	0.30	2.0
59	0.50	3.35
60	0.80	5.4
61	1.5	10.0
62	3.0	20.0
67	0.40	2.7	0.55	3.7		82 cm camera comparison
68	0.40	2.7	0.62	4.2
69	0.40	2.7	0.70	4.7
70	0.40	2.7	0.85	5.7
71	0.40	2.7	1.15	7.7
72	0.40	2.7	1.90	12.7
73	0.40	2.7	3.40	22.8
78	0.50	3.3				25 cm camera star
79	0.80	5.4
80	1.50	10.0
81	3.0	20.0
82	6.0	40.0	0.16	1.0		Coronagraph
83	9.0	60.0	0.42	2.8
84	18.0	120.0	0.75	5.0
85	26.0					Comb
90	1.20	8.0	1.45	9.7		25 cm camera comparison
91	1.20	8.0	1.75	11.7
92	1.20	8.0	2.50	16.8
93	1.20	8.0	4.00	26.8
94	1.20	8.0	7.00	46.9
95	1.20	8.0	10.00	67.0
96	1.20	8.0	19.00	127.3
97	1.20	8.0	27.00	180.9