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
SvkV23 Lac	P	-	0:2	21° / NW	12.25-12.60 (C)	EW	54387.7261+0.3499823*E
CzeV134 Cas	P	-	0:7	38° / NE	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
CzeV622 Per	S	-	0:15	61° / NW	13.2-13.85 (V)	3	54349.611+2.894365*E
SvkV152 Cas	S	-	0:18	41° / NW	12.95-13.17 (V)	1.25	58387.3+3.2422*E
CzeV177 Gem	P	-	0:18	52° / SE	12.8-13.1 (C)	EW	55155.52868+0.359857*E
CzeV271 Aur	P	-	0:31	72° / S	14.9-16.1 (Clear)	3.8	55831.5888+0.88712*E
CzeV1570 Ori	P	-	0:37	61° / S	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
CzeV343A Aur	P	-	0:39	71° / S	13.47-13.72 (V)	5.2	55958.36058+1.209373*E
CzeV1567 Ori	S	-	0:57	60° / S	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
CzeV266 And	S	-	1:6	45° / NW	14.9-15.7 (Clear)	EA	52000.4478+1.0077*E
TYC 3807- UMa	P	-	1:9	65° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV838 Mon	P	-	1:12	42° / S	12.81-13.20 (R)	3	57426.311+3.533603*E
CzeV1574 Gem	P	-	1:45	54° / S	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV267 And	S	-	1:52	39° / NW	15.8-16.3 (C)	EW	55808.45184+0.2954*E
V1094 Cas	P	-	1:52	41° / NW	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV268 Per	P	-	2:5	40° / W	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV1568 Ori	P	-	2:5	55° / SW	13.7-13.82 (V)	0.1	58515.31494+0.924611*E
CzeV208 Cam	S	-	2:6	57° / NW	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV1559 Gem	P	-	2:17	53° / S	14.3-14.62 (V)	0.1	58413.50616+0.3559661*E
CzeV1575 Gem	S	-	2:20	53° / S	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
CzeV1566 Ori	P	-	2:22	53° / SW	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
CzeV1565 Ori	P	-	2:42	50° / SW	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
CzeV252 UMi	P	-	2:44	48° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
SvkV67 Cep	P	-	2:49	35° / N	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV1503 Cas	P	-	3:8	32° / NW	14.5-14.62 (V)	0.1	58487.52856+0.757672*E
SvkV098 Aur	P	-	3:18	56° / NW	12.11-12.39 (V)	1	57646.36457+0.4309828*E
CzeV1502 Cas	S	-	4:38	26° / N	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
SvkV 39 Lac	P	-	16:18	85° / NE	11.4-11.4 (V)	2	56494.529+1.446856*E
bet Per	S	-	18:0	54° / E	2.12-2.12 (V)	EA	45642.987+2.8673043*E
CzeV1503 Cas	S	-	18:3	75° / NE	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV323 Cyg	P	-	19:7	53° / W	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	19:9	52° / W	12.5-12.5 (C)	EW	55832.7365+0.429145*E
CzeV623 And	S	-	19:41	74° / SE	12,33-12,47 (clear)	EW	54333+0.466395*E
V1094 Cas	S	-	19:42	81° / N	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
SvkV23 Lac	S	-	19:50	59° / W	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
V0538 Peg	P	-	19:57	52° / W	12.54-12.64 (V)	1	58410.45142+0.888628*E
CzeV1565 Ori	S	-	20:6	34° / E	13.65-13.80 (V)	0.1	58515.58099+0.550467*E
KIC 98322 Cyg	S	-	20:24	30° / NW	12.27-12.27 (0.19)	EW	55688.73+0.4579485*E
SvkV30 Per	P	-	20:27	89° / N	12.3-12.6 (V)	EW	54332.747+0.979176*E
CzeV1570 Ori	S	-	20:28	37° / E	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV270 Cyg	P	-	20:58	35° / W	10.6-10.9 (C)	2.9	54298.2205+1.87792*E
CzeV208 Cam	P	-	21:9	78° / NE	12.2-24.1 (R)	EB	55650.522528+0.41125*E
CzeV1559 Gem	S	-	22:1	35° / E	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV343B Aur	P	-	22:4	61° / SE	13.47-13.59 (V)	4.4	55968.33977+0.806931*E
SvkV098 Aur	S	-	22:10	78° / E	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV1566 Ori	S	-	22:11	51° / SE	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
CzeV623 And	P	-	22:22	65° / SW	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV267 And	P	-	22:22	70° / W	15.8-16.5 (C)	EW	55807.42028+0.2954*E
TYC 3807- UMa	S	-	22:25	43° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
SvkV67 Cep	S	-	22:49	49° / NW	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV1574 Gem	S	-	22:54	42° / SE	16.32-16.66 (V)	0.1	58513.70223+0.236793*E
CzeV265 And	P	-	22:57	65° / W	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV1502 Cas	P	-	23:12	57° / NW	13.63-13.79 (V)	0.1	58487.45031+0.452827*E

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