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
DT Cam	P	-	0:0	52° / NW	8.166-8.228 (Hp)	EA	48501.355+7.06625*E
TYC 3807- UMa	S	-	0:15	86° / NW	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
CzeV267 And	P	-	0:19	21° / NW	15.8-16.5 (C)	EW	55807.42028+0.2954*E
SvkV67 Cep	S	-	0:33	32° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
SvkV30 Per	P	-	0:38	24° / NW	12.3-12.6 (V)	EW	54332.747+0.979176*E
CzeV1559 Gem	P	-	1:15	33° / W	14.3-14.62 (V)	0.1	58413.50616+0.3559661*E
CzeV1502 Cas	P	-	1:20	24° / N	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
V1094 Cas	P	-	1:22	23° / N	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV1570 Ori	S	-	1:26	25° / W	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV1574 Gem	S	-	1:55	26° / W	16.32-16.66 (V)	0.1	58513.70223+0.236793*E
SvkV152 Cas	S	-	2:37	22° / N	12.95-13.17 (V)	1.25	58387.3+3.2422*E
CzeV208 Cam	P	-	3:1	25° / NW	12.2-24.1 (R)	EB	55650.522528+0.41125*E
NZ Vir	P	-	3:9	43° / SE	10.95-11.10 (V)	EA	57753+1.650339*E
CzeV1503 Cas	P	-	3:22	21° / N	14.5-14.62 (V)	0.1	58487.52856+0.757672*E
CzeV 1249 Cam	P	-	3:29	23° / NW	12.97-13.38 (V)	6	57605.191765+1.363574*E
KIC 98322 Cyg	S	-	4:26	39° / NE	12.27-12.27 (0.19)	EW	55688.73+0.4579485*E
V0538 Peg	P	-	17:3	42° / W	12.54-12.64 (V)	1	58410.45142+0.888628*E
CzeV343B Aur	P	-	17:5	52° / E	13.47-13.59 (V)	4.4	55968.33977+0.806931*E
TYC 3807- UMa	P	-	17:37	37° / NE	9.45-9.77 (V)	1	56346.7849+1.305502*E
CzeV1503 Cas	S	-	18:17	64° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
VSX J0600 Ori	S	-	18:58	57° / SE	13.35-14.1 (V)	0.1	52718.7245+1.461104*E
SvkV 20 And	S	-	19:2	48° / W	11.5-11.5 (V)	EA	55482.916+1.1854*E
V1094 Cas	S	-	19:12	59° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV268 Per	P	-	19:26	65° / W	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV623 And	S	-	19:50	51° / W	12,33-12,47 (clear)	EW	54333+0.466395*E
CzeV1502 Cas	S	-	19:54	52° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV1567 Ori	S	-	20:3	61° / S	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
CzeV1575 Gem	S	-	20:5	50° / SE	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
SvkV67 Cep	P	-	20:30	42° / N	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV1565 Ori	S	-	20:36	61° / S	13.65-13.80 (V)	0.1	58515.58099+0.550467*E
CzeV267 And	S	-	20:43	49° / W	15.8-16.3 (C)	EW	55808.45184+0.2954*E
CzeV1559 Gem	S	-	20:58	54° / S	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV1570 Ori	P	-	21:17	59° / SW	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
CzeV134 Cas	P	-	21:31	47° / NE	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
TYC 3807- UMa	P	-	21:31	69° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV252 UMi	P	-	21:38	47° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV208 Cam	S	-	22:7	57° / NW	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV1566 Ori	P	-	22:12	54° / SW	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
CzeV623 And	P	-	22:31	26° / NW	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV343A Aur	P	-	22:59	53° / W	13.47-13.72 (V)	5.2	55958.36058+1.209373*E
CzeV1574 Gem	P	-	23:5	49° / SW	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV177 Gem	P	-	23:29	46° / SW	12.8-13.1 (C)	EW	55155.52868+0.359857*E
CzeV265 And	P	-	23:46	24° / NW	15.9-16.4 (C)	EW	55796.55235+0.3647*E
SvkV098 Aur	P	-	23:47	52° / NW	12.11-12.39 (V)	1	57646.36457+0.4309828*E

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