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
CzeV1566 Ori	P	-	0:8	42° / W	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
V1094 Cas	P	-	1:11	26° / NW	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV1567 Ori	P	-	1:15	31° / W	14.97-15.59 (V)	0.1	58397.0745+0.585775*E
CzeV838 Mon	P	-	1:18	22° / SW	12.81-13.20 (R)	3	57426.311+3.533603*E
SvkV67 Cep	P	-	1:54	32° / N	13.66-14.26 (V)	EW	57518.37698+0.3352*E
TYC 3807- UMa	P	-	2:31	70° / NW	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV1574 Gem	P	-	2:45	23° / W	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
TYC 3807- UMa	P	-	3:1	66° / NW	9.45-9.77 (V)	1	56346.7849+1.305502*E
CzeV688 Per	S	-	3:12	21° / N	13.3-13.45 (C)	3	54377.43+3.46775*E
CzeV208 Cam	S	-	3:20	26° / NW	12.2-24.2 (R)	EB	55650.318182+0.41125*E
SvkV098 Aur	P	-	3:34	28° / NW	12.11-12.39 (V)	1	57646.36457+0.4309828*E
DT Cam	S	-	3:37	31° / NW	8.166-8.166 (Hp)	EA	56292.47+7.06625*E
CzeV1503 Cas	P	-	4:2	21° / N	14.5-14.62 (V)	0.1	58487.52856+0.757672*E
CzeV1502 Cas	S	-	4:10	21° / N	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
KIC 98322 Cyg	P	-	4:46	38° / NE	12.27-12.46 (0.19)	EW	55688.49913+0.4579485*E
SvkV 39 Lac	P	-	5:7	25° / NE	11.4-11.4 (V)	2	56494.529+1.446856*E
V0428 Cep	P	-	16:49	53° / NW	8.288-8.62 (V)	EB	48504.81+8.22077*E
SvkV30 Per	P	-	17:27	86° / NW	12.3-12.6 (V)	EW	54332.747+0.979176*E
bet Per	P	-	18:7	81° / S	2.12-3.39 (V)	EA	45641.5135+2.8673043*E
CzeV1567 Ori	S	-	18:13	48° / SE	14.97-15.22 (V)	0.1	58397.36738+0.585775*E
CzeV 1249 Cam	S	-	18:29	83° / NE	12.97-13.38 (V)	6	57605.874+1.363574*E
CzeV1503 Cas	S	-	18:56	63° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV1568 Ori	P	-	18:57	54° / SE	13.7-13.82 (V)	0.1	58515.31494+0.924611*E
V1094 Cas	S	-	19:2	64° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV266 And	P	-	19:46	62° / W	14.9-15.3 (Clear)	EA	51999.818+1.0077*E
CzeV1566 Ori	S	-	19:58	59° / SE	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
CzeV265 And	P	-	20:6	59° / W	15.9-16.4 (C)	EW	55796.55235+0.3647*E
SvkV23 Lac	P	-	20:23	22° / NW	12.25-12.60 (C)	EW	54387.7261+0.3499823*E
CzeV1575 Gem	P	-	20:53	51° / SE	12.74-12.88 (V)	0.1	58135.9715+0.570519*E
CzeV268 Per	P	-	21:6	54° / W	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
SvkV 20 And	P	-	21:9	34° / NW	11.5-11.8 (V)	EA	55482.323+1.1854*E
CzeV134 Cas	P	-	21:34	44° / NE	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
CzeV177 Gem	P	-	21:53	55° / S	12.8-13.1 (C)	EW	55155.52868+0.359857*E
SvkV67 Cep	S	-	21:54	38° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV208 Cam	P	-	22:22	59° / NW	12.2-24.1 (R)	EB	55650.522528+0.41125*E
VSX J0600 Ori	S	-	22:24	56° / SW	13.35-14.1 (V)	0.1	52718.7245+1.461104*E
SvkV098 Aur	S	-	22:26	68° / W	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV1502 Cas	P	-	22:44	37° / NW	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
CzeV252 UMi	P	-	22:50	48° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV267 And	S	-	22:54	34° / NW	15.8-16.3 (C)	EW	55808.45184+0.2954*E
CzeV1559 Gem	S	-	22:57	53° / S	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV1565 Ori	P	-	22:59	51° / SW	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
TYC 3807- UMa	S	-	23:47	84° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
CzeV1570 Ori	S	-	23:47	45° / SW	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV1574 Gem	S	-	23:54	47° / SW	16.32-16.66 (V)	0.1	58513.70223+0.236793*E

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