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
CzeV1574 Gem	S	-	0:39	51° / SW	16.32-16.66 (V)	0.1	58513.70223+0.236793*E
CzeV1566 Ori	P	-	0:47	50° / SW	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
CzeV1570 Ori	P	-	1:5	47° / SW	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
CzeV1575 Gem	P	-	1:11	49° / SW	12.74-12.88 (V)	0.1	58135.9715+0.570519*E
CzeV1503 Cas	S	-	1:25	31° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV267 And	P	-	1:31	26° / NW	15.8-16.5 (C)	EW	55807.42028+0.2954*E
CzeV838 Mon	S	-	1:50	30° / SW	12.81-12.81 (R)	3	57428.068+3.533603*E
CzeV1502 Cas	S	-	1:54	29° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
SvkV098 Aur	S	-	2:13	48° / NW	12.11-12.39 (V)	1	58787.39349+0.4309828*E
AU Mon	P	-	2:25	26° / SW	8.18-9.02 (V)	26	54136.6734+11.1130374*E
TYC 3807- UMa	P	-	2:32	83° / NW	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV208 Cam	S	-	2:37	39° / NW	12.2-24.2 (R)	EB	55650.318182+0.41125*E
CzeV1565 Ori	S	-	2:43	32° / W	13.65-13.80 (V)	0.1	58515.58099+0.550467*E
SvkV67 Cep	S	-	2:51	32° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV1568 Ori	S	-	3:17	27° / W	13.7-13.72 (V)	0.1	58515.77724+0.924611*E
V1094 Cas	S	-	3:56	22° / N	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV1559 Gem	S	-	4:11	25° / W	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV271 Aur	P	-	4:24	26° / W	14.9-16.1 (Clear)	3.8	55831.5888+0.88712*E
CzeV1503 Cas	P	-	16:19	77° / NE	14.5-14.62 (V)	0.1	58487.52856+0.757672*E
SvkV 20 And	S	-	18:23	74° / W	11.5-11.5 (V)	EA	55482.916+1.1854*E
CzeV343B Aur	P	-	18:38	47° / E	13.47-13.59 (V)	4.4	55968.33977+0.806931*E
CzeV623 And	P	-	18:45	76° / S	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV134 Cas	P	-	19:26	25° / N	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
bet Per	P	-	19:36	81° / S	2.12-3.39 (V)	EA	45641.5135+2.8673043*E
CzeV323 Cyg	P	-	20:4	25° / NW	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV1565 Ori	P	-	20:7	51° / SE	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
CzeV323 Cyg	S	-	20:7	25° / NW	12.5-12.5 (C)	EW	55832.7365+0.429145*E
CzeV1502 Cas	P	-	20:28	63° / NW	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
CzeV1566 Ori	S	-	20:37	54° / SE	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
CzeV265 And	P	-	20:41	67° / W	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV1570 Ori	S	-	20:57	57° / SE	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
SvkV098 Aur	P	-	21:0	85° / NE	12.11-12.39 (V)	1	57646.36457+0.4309828*E
CzeV177 Gem	P	-	21:8	46° / SE	12.8-13.1 (C)	EW	55155.52868+0.359857*E
CzeV208 Cam	P	-	21:39	77° / NW	12.2-24.1 (R)	EB	55650.522528+0.41125*E
V1094 Cas	P	-	21:45	55° / NW	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV1574 Gem	P	-	21:49	48° / SE	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV267 And	S	-	21:55	56° / W	15.8-16.3 (C)	EW	55808.45184+0.2954*E
CzeV1567 Ori	S	-	21:56	61° / S	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
CzeV252 UMi	P	-	22:15	46° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
SvkV67 Cep	P	-	22:48	41° / N	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV268 Per	P	-	23:26	46° / W	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
TYC 3807- UMa	S	-	23:48	72° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
CzeV1559 Gem	P	-	23:55	54° / S	14.3-14.62 (V)	0.1	58413.50616+0.3559661*E

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