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
TYC 3807- UMa	P	-	0:18	67° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV1502 Cas	S	-	0:29	41° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV1568 Ori	P	-	0:38	57° / SW	13.7-13.82 (V)	0.1	58515.31494+0.924611*E
CzeV1565 Ori	P	-	0:52	56° / SW	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
CzeV1566 Ori	S	-	1:36	51° / SW	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
CzeV265 And	P	-	1:37	32° / NW	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV1574 Gem	P	-	1:45	51° / SW	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
SvkV67 Cep	S	-	1:45	35° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV1567 Ori	P	-	2:4	46° / SW	14.97-15.59 (V)	0.1	58397.0745+0.585775*E
CzeV177 Gem	P	-	2:26	46° / SW	12.8-13.1 (C)	EW	55155.52868+0.359857*E
bet Per	S	-	2:26	31° / NW	2.12-2.12 (V)	EA	45642.987+2.8673043*E
CzeV208 Cam	P	-	2:38	45° / NW	12.2-24.1 (R)	EB	55650.522528+0.41125*E
SvkV098 Aur	P	-	3:2	49° / NW	12.11-12.39 (V)	1	57646.36457+0.4309828*E
CzeV1570 Ori	S	-	3:17	35° / W	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV1559 Gem	S	-	3:46	37° / SW	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
DT Cam	P	-	3:46	46° / NW	8.166-8.228 (Hp)	EA	48501.355+7.06625*E
V1094 Cas	P	-	4:1	24° / N	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV134 Cas	P	-	4:16	75° / NE	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
CzeV1575 Gem	S	-	4:53	26° / W	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
CzeV 1249 Cam	P	-	17:2	52° / NE	12.97-13.38 (V)	6	57605.191765+1.363574*E
SvkV30 Per	P	-	18:2	77° / E	12.3-12.6 (V)	EW	54332.747+0.979176*E
CzeV1565 Ori	S	-	18:15	26° / E	13.65-13.80 (V)	0.1	58515.58099+0.550467*E
CzeV343B Aur	P	-	18:59	42° / E	13.47-13.59 (V)	4.4	55968.33977+0.806931*E
CzeV1567 Ori	S	-	19:2	33° / E	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
CzeV1502 Cas	P	-	19:3	78° / NW	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
TYC 3807- UMa	P	-	19:21	29° / NE	9.45-9.77 (V)	1	56346.7849+1.305502*E
CzeV132 Lac	P	-	20:1	49° / W	15.6-16.3 (C)	EW	54337.43655+0.33658*E
CzeV1503 Cas	S	-	20:40	68° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV623 And	S	-	20:46	70° / SW	12,33-12,47 (clear)	EW	54333+0.466395*E
CzeV323 Cyg	P	-	21:3	25° / NW	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	21:5	25° / NW	12.5-12.5 (C)	EW	55832.7365+0.429145*E
CzeV268 Per	P	-	21:24	73° / SW	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV1566 Ori	P	-	21:25	53° / SE	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
CzeV252 UMi	P	-	21:30	46° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
TYC 3807- UMa	S	-	21:34	45° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
SvkV67 Cep	P	-	21:43	49° / NW	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV688 Per	P	-	21:43	74° / NW	13.3-13.6 (C)	3	54375.7653+3.46775*E
CzeV208 Cam	S	-	21:44	82° / NW	12.2-24.2 (R)	EB	55650.318182+0.41125*E
V1094 Cas	S	-	21:51	62° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
SvkV098 Aur	S	-	21:54	85° / NE	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV1575 Gem	P	-	22:3	44° / SE	12.74-12.88 (V)	0.1	58135.9715+0.570519*E
SvkV 39 Lac	S	-	22:13	35° / NW	11.4-11.4 (V)	2	56495.252+1.446856*E
CzeV622 Per	P	-	22:21	68° / NW	13.2-13.85 (V)	3	54417.9408+2.894365*E
VSX J0600 Ori	P	-	22:49	61° / S	13.35-14.1 (V)	0.1	52717.994+1.461104*E
CzeV1574 Gem	S	-	22:54	49° / SE	16.32-16.66 (V)	0.1	58513.70223+0.236793*E
CzeV266 And	S	-	22:57	55° / W	14.9-15.7 (Clear)	EA	52000.4478+1.0077*E
SvkV23 Lac	S	-	22:59	21° / NW	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
CzeV1570 Ori	P	-	23:8	61° / S	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
CzeV623 And	P	-	23:26	45° / W	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV1559 Gem	P	-	23:30	52° / SE	14.3-14.62 (V)	0.1	58413.50616+0.3559661*E
CzeV343A Aur	P	-	23:31	71° / S	13.47-13.72 (V)	5.2	55958.36058+1.209373*E
CzeV267 And	P	-	23:57	46° / NW	15.8-16.5 (C)	EW	55807.42028+0.2954*E

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