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
CzeV1566 Ori	P	-	0:6	26° / E	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
SvkV23 Lac	P	-	0:26	61° / W	12.25-12.60 (C)	EW	54387.7261+0.3499823*E
CzeV1565 Ori	P	-	0:31	31° / E	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
CzeV270 Cyg	P	-	0:34	46° / W	10.6-10.9 (C)	2.9	54298.2205+1.87792*E
CzeV714 Cep	S	-	0:43	64° / NW	10.57-10.57 (C)	1	51322.849+3.79464*E
CzeV1567 Ori	S	-	0:52	34° / E	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
TYC 3807- UMa	P	-	1:13	30° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV1502 Cas	S	-	1:21	75° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
KIC 98322 Cyg	P	-	1:33	27° / NW	12.27-12.46 (0.19)	EW	55688.49913+0.4579485*E
CzeV1574 Gem	P	-	1:38	24° / E	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV1570 Ori	P	-	1:51	43° / E	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
CzeV134 Cas	P	-	1:57	24° / N	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
CzeV266 And	S	-	1:57	82° / W	14.9-15.7 (Clear)	EA	52000.4478+1.0077*E
SvkV098 Aur	P	-	2:39	75° / E	12.11-12.39 (V)	1	57646.36457+0.4309828*E
CzeV208 Cam	P	-	2:45	83° / N	12.2-24.1 (R)	EB	55650.522528+0.41125*E
CzeV267 And	S	-	2:45	74° / W	15.8-16.3 (C)	EW	55808.45184+0.2954*E
SvkV67 Cep	P	-	2:54	52° / NW	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV343A Aur	P	-	3:15	64° / SE	13.47-13.72 (V)	5.2	55958.36058+1.209373*E
V1094 Cas	S	-	3:24	63° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV271 Aur	P	-	3:38	65° / SE	14.9-16.1 (Clear)	3.8	55831.5888+0.88712*E
CzeV622 Per	P	-	18:58	36° / NE	13.2-13.85 (V)	3	54417.9408+2.894365*E
CzeV468 Oph	S	-	19:12	29° / SW	9.48-9.84 (V)	4.8	56427.5+4.0502*E
CzeV268 Per	P	-	19:53	28° / NE	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV1502 Cas	P	-	19:55	55° / NE	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
CzeV623 And	S	-	20:5	36° / E	12,33-12,47 (clear)	EW	54333+0.466395*E
SvkV30 Per	P	-	20:6	45° / NE	12.3-12.6 (V)	EW	54332.747+0.979176*E
KIC 98322 Cyg	S	-	20:6	74° / W	12.27-12.27 (0.19)	EW	55688.73+0.4579485*E
SvkV23 Lac	S	-	20:14	68° / SE	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
CzeV132 Lac	P	-	20:23	79° / E	15.6-16.3 (C)	EW	54337.43655+0.33658*E
CzeV 1249 Cam	P	-	21:5	40° / NE	12.97-13.38 (V)	6	57605.191765+1.363574*E
V1094 Cas	P	-	21:13	63° / NE	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
SvkV098 Aur	S	-	21:31	33° / NE	12.11-12.39 (V)	1	58787.39349+0.4309828*E
V1123 Cas	P	-	21:33	63° / NE	10.91-21.11 (I)	EA	51427.8223+4.502*E
CzeV208 Cam	S	-	21:51	47° / NE	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV1503 Cas	S	-	22:14	72° / NE	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV623 And	P	-	22:45	61° / E	12,33-12,48 (clear)	EW	54333.578+0.466395*E
SvkV67 Cep	S	-	22:54	68° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV252 UMi	P	-	22:56	48° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV323 Cyg	P	-	23:7	59° / W	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	23:9	59° / W	12.5-12.5 (C)	EW	55832.7365+0.429145*E
CzeV265 And	P	-	23:16	73° / E	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV267 And	P	-	23:16	72° / E	15.8-16.5 (C)	EW	55807.42028+0.2954*E
CzeV261 Cyg	S	-	23:32	33° / W	13.28-13.54 (C)	EW	55755.39659+0.335595*E

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