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
CzeV268 Per	P	-	0:9	78° / S	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV1565 Ori	S	-	0:11	42° / E	13.65-13.80 (V)	0.1	58515.58099+0.550467*E
CzeV623 And	P	-	0:19	74° / SW	12,33-12,48 (clear)	EW	54333.578+0.466395*E
bet Per	S	-	0:30	81° / S	2.12-2.12 (V)	EA	45642.987+2.8673043*E
CzeV252 UMi	P	-	0:33	46° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
TYC 3807- UMa	S	-	1:11	40° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
SvkV67 Cep	S	-	1:20	51° / NW	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV1566 Ori	S	-	1:33	53° / SE	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
CzeV838 Mon	P	-	1:47	34° / SE	12.81-13.20 (R)	3	57426.311+3.533603*E
CzeV1502 Cas	S	-	1:52	61° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV267 And	P	-	1:52	67° / W	15.8-16.5 (C)	EW	55807.42028+0.2954*E
SvkV30 Per	P	-	2:1	68° / W	12.3-12.6 (V)	EW	54332.747+0.979176*E
CzeV1574 Gem	P	-	2:4	42° / SE	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV343A Aur	P	-	2:13	68° / SE	13.47-13.72 (V)	5.2	55958.36058+1.209373*E
CzeV1567 Ori	S	-	2:46	60° / S	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
VSX J0600 Ori	P	-	2:58	61° / S	13.35-14.1 (V)	0.1	52717.994+1.461104*E
CzeV177 Gem	P	-	3:2	51° / SE	12.8-13.1 (C)	EW	55155.52868+0.359857*E
TYC 3807- UMa	P	-	3:25	58° / NE	9.45-9.77 (V)	1	56346.7849+1.305502*E
CzeV1559 Gem	S	-	3:37	52° / SE	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV1568 Ori	P	-	3:41	61° / S	13.7-13.82 (V)	0.1	58515.31494+0.924611*E
CzeV1575 Gem	P	-	3:53	53° / S	12.74-12.88 (V)	0.1	58135.9715+0.570519*E
CzeV1570 Ori	P	-	3:57	60° / S	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
V1094 Cas	S	-	4:0	47° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
SvkV152 Cas	S	-	17:57	63° / NE	12.95-13.17 (V)	1.25	58387.3+3.2422*E
CzeV323 Cyg	P	-	19:1	76° / S	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	19:4	76° / S	12.5-12.5 (C)	EW	55832.7365+0.429145*E
SvkV 20 And	S	-	19:39	65° / E	11.5-11.5 (V)	EA	55482.916+1.1854*E
CzeV261 Cyg	P	-	20:18	49° / W	13.28-13.64 (C)	EW	55732.40643+0.335595*E
CzeV266 And	P	-	20:23	60° / E	14.9-15.3 (Clear)	EA	51999.818+1.0077*E
CzeV1502 Cas	P	-	20:26	71° / NE	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
SvkV67 Cep	P	-	21:17	68° / N	13.66-14.26 (V)	EW	57518.37698+0.3352*E
KIC 98322 Cyg	P	-	21:26	47° / NW	12.27-12.46 (0.19)	EW	55688.49913+0.4579485*E
CzeV132 Lac	P	-	21:27	75° / W	15.6-16.3 (C)	EW	54337.43655+0.33658*E
CzeV623 And	S	-	21:39	66° / SE	12,33-12,47 (clear)	EW	54333+0.466395*E
V1094 Cas	P	-	21:50	78° / NE	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV267 And	S	-	22:16	78° / E	15.8-16.3 (C)	EW	55808.45184+0.2954*E
TYC 3807- UMa	P	-	22:27	23° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
V0538 Peg	P	-	23:3	52° / W	12.54-12.64 (V)	1	58410.45142+0.888628*E
SvkV23 Lac	S	-	23:3	58° / W	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
CzeV1503 Cas	S	-	23:23	77° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV265 And	P	-	23:23	87° / S	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV208 Cam	S	-	23:37	73° / NE	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV 1249 Cam	P	-	23:38	73° / NE	12.97-13.38 (V)	6	57605.191765+1.363574*E
SvkV 39 Lac	P	-	23:42	56° / NW	11.4-11.4 (V)	2	56494.529+1.446856*E
SvkV098 Aur	S	-	23:44	64° / E	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV1570 Ori	S	-	23:48	39° / E	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E

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