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
CzeV323 Cyg	P	-	0:34	29° / W	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	0:36	29° / W	12.5-12.5 (C)	EW	55832.7365+0.429145*E
CzeV1574 Gem	P	-	0:42	32° / E	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV1570 Ori	S	-	0:45	49° / SE	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV688 Per	S	-	0:53	81° / NW	13.3-13.45 (C)	3	54377.43+3.46775*E
SvkV67 Cep	S	-	0:57	52° / NW	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV1502 Cas	P	-	1:1	65° / NW	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
CzeV267 And	S	-	1:31	69° / W	15.8-16.3 (C)	EW	55808.45184+0.2954*E
CzeV1566 Ori	S	-	1:36	55° / SE	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
CzeV132 Lac	P	-	1:41	34° / NW	15.6-16.3 (C)	EW	54337.43655+0.33658*E
CzeV1565 Ori	P	-	1:49	57° / SE	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
SvkV23 Lac	S	-	1:54	30° / NW	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
CzeV208 Cam	S	-	2:1	80° / NW	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV266 And	P	-	2:2	63° / W	14.9-15.3 (Clear)	EA	51999.818+1.0077*E
CzeV623 And	P	-	2:11	57° / W	12,33-12,48 (clear)	EW	54333.578+0.466395*E
TYC 3807- UMa	P	-	2:22	51° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV1567 Ori	S	-	2:33	60° / S	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
V1094 Cas	S	-	2:33	56° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV177 Gem	P	-	2:39	50° / SE	12.8-13.1 (C)	EW	55155.52868+0.359857*E
CzeV252 UMi	P	-	3:10	46° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV1559 Gem	S	-	3:12	51° / SE	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV1575 Gem	S	-	4:1	53° / S	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
CzeV1568 Ori	S	-	4:2	60° / SW	13.7-13.72 (V)	0.1	58515.77724+0.924611*E
SvkV098 Aur	P	-	4:15	73° / W	12.11-12.39 (V)	1	57646.36457+0.4309828*E
TYC 5112- Ser	S	-	17:12	38° / SW	10.4-10.4 (V)	1	57935.998+1.95389*E
CzeV270 Cyg	S	-	17:50	73° / SE	10.6-10.8 (C)	2.9	54299.1601+1.87792*E
SvkV30 Per	P	-	18:56	50° / NE	12.3-12.6 (V)	EW	54332.747+0.979176*E
CzeV1503 Cas	S	-	19:22	65° / NE	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV1502 Cas	S	-	19:35	66° / NE	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV265 And	P	-	19:52	57° / E	15.9-16.4 (C)	EW	55796.55235+0.3647*E
V 994B Her	S	-	19:59	35° / W	6.93-7.02 (Hp)	4.4	53870.959+1.420033*E
CzeV268 Per	P	-	20:1	45° / E	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
V1094 Cas	P	-	20:22	70° / NE	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV626 Aql	P	-	20:32	31° / W	13.2-13.5 (V)	EA	51380.99+1.651042*E
SvkV67 Cep	P	-	20:54	68° / N	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV208 Cam	P	-	21:3	55° / NE	12.2-24.1 (R)	EB	55650.522528+0.41125*E
KIC 98322 Cyg	S	-	21:17	46° / NW	12.27-12.27 (0.19)	EW	55688.73+0.4579485*E
SvkV23 Lac	P	-	21:42	69° / SW	12.25-12.60 (C)	EW	54387.7261+0.3499823*E
CzeV261 Cyg	S	-	21:49	32° / W	13.28-13.54 (C)	EW	55755.39659+0.335595*E
CzeV267 And	P	-	22:1	78° / E	15.8-16.5 (C)	EW	55807.42028+0.2954*E
CzeV 1249 Cam	S	-	22:57	69° / NE	12.97-13.38 (V)	6	57605.874+1.363574*E
SvkV098 Aur	S	-	23:8	60° / NE	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV623 And	S	-	23:30	76° / S	12,33-12,47 (clear)	EW	54333+0.466395*E
TYC 3807- UMa	S	-	23:39	31° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E

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