Dusk	Begin of True dusk		Begin of pseudo dusk		End of Pseudo dusk
Date	m₁	a₁	m₁₂	a₁₂	m₂₃	a₂₃
15-06-2007	20.95	−14.213	20.9	−14.665	21	−17.38
13-8-2007	21.42	−14.69	21.4	−15.172	21.49	−18.53
4-9-2007	20.91	−12.85	20.96	−13.31	21.99	−18.72
27-10-2007	19.09	−15.34	19.7	−15.821	19.73	−17.26
11-1-2008	19.2	−14.42	19.51	−14.866	19.58	−18.11
29-12-2007	18.7	−13.6	18.62	−14.10	19.60	−18.2
12-1-2008	19.2	−14.33	19.5	−14.797	19.45	−17.116
9-2-2008	19.23	−13.003	19.5	−13.487	19.68	−16.87
22-3-2008	19.13	−14.938	19.2	−15.422	20.45	−18.32
23-3-2008	19.13	−14.938	19.2	−15.422	19.48	−17.93
5-4-2008	18.95	−13.97	19.1	−14.454	19.36	−17.84
6-4-2008	19.13	−14.938	19.2	−15.422	19.13	−16.87
Mean	19.63	−14.38	19.78	−14.86	20.06	−17.80
SD	0.92	0.91	0.87	0.91	0.927	0.697