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
CzeV267 And	S	-	0:24	77° / W	15.8-16.3 (C)	EW	55808.45184+0.2954*E
CzeV1575 Gem	S	-	0:28	32° / E	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
CzeV1566 Ori	P	-	0:37	49° / SE	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
CzeV323 Cyg	P	-	0:39	27° / NW	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	0:42	26° / NW	12.5-12.5 (C)	EW	55832.7365+0.429145*E
CzeV1567 Ori	S	-	0:50	51° / SE	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
SvkV23 Lac	P	-	1:17	34° / W	12.25-12.60 (C)	EW	54387.7261+0.3499823*E
SS Cam	P	-	1:19	55° / NW	10.05-10.62 (V)	EB	35223.672+4.82365*E
SvkV67 Cep	S	-	1:21	50° / NW	13.66-14.16 (V)	EW	57518.54553+0.3352*E
TYC 3807- UMa	P	-	1:25	45° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV252 UMi	P	-	2:1	46° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV132 Lac	P	-	2:23	27° / NW	15.6-16.3 (C)	EW	54337.43655+0.33658*E
CzeV1565 Ori	S	-	2:28	61° / S	13.65-13.80 (V)	0.1	58515.58099+0.550467*E
CzeV1574 Gem	P	-	2:35	48° / SE	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV266 And	P	-	2:35	56° / W	14.9-15.3 (Clear)	EA	51999.818+1.0077*E
CzeV265 And	P	-	2:38	56° / W	15.9-16.4 (C)	EW	55796.55235+0.3647*E
V0413 And	S	-	2:46	31° / NW	6.63-6.73 (V)	48	50858.8135+50.119*E
TYC 3807- UMa	P	-	3:6	59° / NE	9.45-9.77 (V)	1	56346.7849+1.305502*E
CzeV1570 Ori	S	-	3:17	61° / S	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV1559 Gem	P	-	3:49	54° / S	14.3-14.62 (V)	0.1	58413.50616+0.3559661*E
CzeV208 Cam	P	-	4:1	63° / NW	12.2-24.1 (R)	EB	55650.522528+0.41125*E
SvkV 39 Lac	P	-	4:1	23° / NW	11.4-11.4 (V)	2	56494.529+1.446856*E
SvkV30 Per	P	-	17:26	39° / NE	12.3-12.6 (V)	EW	54332.747+0.979176*E
CzeV266 And	S	-	17:31	38° / NE	14.9-15.7 (Clear)	EA	52000.4478+1.0077*E
CzeV623 And	S	-	18:40	41° / E	12,33-12,47 (clear)	EW	54333+0.466395*E
CzeV1503 Cas	S	-	20:6	71° / NE	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
KIC 98322 Cyg	P	-	20:40	50° / W	12.27-12.46 (0.19)	EW	55688.49913+0.4579485*E
CzeV267 And	P	-	20:55	69° / E	15.8-16.5 (C)	EW	55807.42028+0.2954*E
SvkV23 Lac	S	-	21:5	72° / SW	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
SvkV67 Cep	P	-	21:18	67° / N	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV623 And	P	-	21:20	66° / SE	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV343A Aur	P	-	21:49	33° / E	13.47-13.72 (V)	5.2	55958.36058+1.209373*E
CzeV714 Cep	P	-	22:3	68° / NW	10.57-10.77 (C)	1	51324.7463+3.79464*E
CzeV261 Cyg	S	-	22:18	26° / W	13.28-13.54 (C)	EW	55755.39659+0.335595*E
V1094 Cas	P	-	22:25	81° / N	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV268 Per	P	-	22:33	71° / SE	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV1568 Ori	S	-	22:36	32° / E	13.7-13.72 (V)	0.1	58515.77724+0.924611*E
TYC 3807- UMa	S	-	22:41	27° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
V0538 Peg	P	-	22:54	49° / W	12.54-12.64 (V)	1	58410.45142+0.888628*E
CzeV208 Cam	S	-	23:6	73° / NE	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV1570 Ori	P	-	23:9	37° / E	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
SvkV098 Aur	S	-	23:32	66° / E	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV1559 Gem	S	-	23:33	24° / E	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV1502 Cas	S	-	23:39	73° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV177 Gem	P	-	23:44	28° / E	12.8-13.1 (C)	EW	55155.52868+0.359857*E
CzeV1574 Gem	S	-	23:45	26° / E	16.32-16.66 (V)	0.1	58513.70223+0.236793*E

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