Predictions are counted for observers located in central Europe (Czech republic): 50° north and 15° east.

Neglection rating:
1 = many observations in last 10 years, 10 = no CCD minimum in last 10 years. More information about rating.
RECOMMENDATION FOR OBSERVERS OBJECTS WITH RATING 5 AND MORE SHOULD BE OBSERVED

Astrophysical interestingness:

There are many systems, which exhibits period changes in O-C diagrams. We have highlighted them among others using small color signs (see the list bellow). Explanations of used colors is given in the picture and appears when your mous move over the sign as well.
The astrophysical interestingness has prepared L. Smelcer, 2009 according to O-C gateway. Updated by P. Zasche (2011).

STAR	P/S BODY		UT	H/A	MAG RANGE	D(h)	ELEMENTS
CzeV1565 Ori	P	-	0:16	35° / E	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
CzeV1566 Ori	S	-	0:16	34° / E	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
CzeV252 UMi	P	-	0:17	47° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV208 Cam	P	-	0:23	72° / NE	12.2-24.1 (R)	EB	55650.522528+0.41125*E
TYC 3807- UMa	P	-	0:29	29° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV1559 Gem	S	-	1:8	26° / E	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV265 And	P	-	1:14	82° / W	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV1575 Gem	S	-	1:14	27° / E	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
CzeV1502 Cas	S	-	1:28	70° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV1568 Ori	P	-	1:30	46° / SE	13.7-13.82 (V)	0.1	58515.31494+0.924611*E
CzeV267 And	P	-	1:55	75° / W	15.8-16.5 (C)	EW	55807.42028+0.2954*E
SvkV 20 And	P	-	1:59	59° / W	11.5-11.8 (V)	EA	55482.323+1.1854*E
CzeV1574 Gem	S	-	2:22	37° / SE	16.32-16.66 (V)	0.1	58513.70223+0.236793*E
SvkV23 Lac	P	-	2:31	34° / W	12.25-12.60 (C)	EW	54387.7261+0.3499823*E
SvkV67 Cep	P	-	2:40	49° / NW	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV1567 Ori	S	-	2:51	56° / SE	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
CzeV1570 Ori	S	-	2:58	57° / SE	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV134 Cas	P	-	3:14	33° / NE	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
V1094 Cas	S	-	3:14	59° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV1503 Cas	S	-	3:19	56° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV268 Per	P	-	3:25	66° / W	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
SvkV30 Per	P	-	3:26	63° / W	12.3-12.6 (V)	EW	54332.747+0.979176*E
SvkV098 Aur	S	-	3:44	88° / NW	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV1503 Cas	P	-	18:14	49° / NE	14.5-14.62 (V)	0.1	58487.52856+0.757672*E
V 994B Her	S	-	19:1	54° / SW	6.93-7.02 (Hp)	4.4	53870.959+1.420033*E
CzeV208 Cam	S	-	19:29	35° / NE	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV623 And	P	-	20:1	42° / E	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV1502 Cas	P	-	20:2	61° / NE	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
CzeV270 Cyg	S	-	20:12	75° / S	10.6-10.8 (C)	2.9	54299.1601+1.87792*E
CzeV323 Cyg	P	-	20:35	74° / SW	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	20:37	74° / SW	12.5-12.5 (C)	EW	55832.7365+0.429145*E
V1094 Cas	P	-	21:3	67° / NE	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV132 Lac	P	-	21:43	81° / W	15.6-16.3 (C)	EW	54337.43655+0.33658*E
SvkV 39 Lac	P	-	21:52	80° / NW	11.4-11.4 (V)	2	56494.529+1.446856*E
CzeV 1249 Cam	P	-	21:52	51° / NE	12.97-13.38 (V)	6	57605.191765+1.363574*E
CzeV267 And	S	-	22:19	70° / E	15.8-16.3 (C)	EW	55808.45184+0.2954*E
SvkV23 Lac	S	-	22:19	73° / SW	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
SvkV098 Aur	P	-	22:31	46° / NE	12.11-12.39 (V)	1	57646.36457+0.4309828*E
KIC 98322 Cyg	S	-	22:37	44° / NW	12.27-12.27 (0.19)	EW	55688.73+0.4579485*E
SvkV67 Cep	S	-	22:40	66° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV1570 Ori	P	-	22:50	21° / E	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
CzeV266 And	P	-	22:54	75° / E	14.9-15.3 (Clear)	EA	51999.818+1.0077*E
CzeV261 Cyg	P	-	23:2	31° / W	13.28-13.64 (C)	EW	55732.40643+0.335595*E
VSX J0600 Ori	S	-	23:12	25° / E	13.35-14.1 (V)	0.1	52718.7245+1.461104*E

Minima predictions for E15°, N50° (central Europe)