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
CzeV177 Gem	P	-	0:3	54° / S	12.8-13.1 (C)	EW	55155.52868+0.359857*E
TYC 3807- UMa	P	-	0:22	74° / NE	9.45-9.77 (V)	1	56346.7849+1.305502*E
CzeV208 Cam	P	-	0:34	55° / NW	12.2-24.1 (R)	EB	55650.522528+0.41125*E
CzeV1503 Cas	S	-	0:41	36° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
TYC 3807- UMa	S	-	0:46	78° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
CzeV1574 Gem	P	-	1:37	47° / SW	16.32-16.66 (V)	0.1	58513.58384+0.236793*E
CzeV1566 Ori	S	-	1:47	43° / W	14.77-15.28 (V)	0.1	58117.05353+0.348075*E
SvkV098 Aur	S	-	1:49	54° / NW	12.11-12.39 (V)	1	58787.39349+0.4309828*E
V1094 Cas	S	-	1:53	30° / NW	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV1565 Ori	P	-	2:3	40° / W	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
SvkV67 Cep	S	-	2:27	33° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV1570 Ori	S	-	2:42	34° / W	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV1502 Cas	P	-	3:16	25° / N	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
CzeV1559 Gem	P	-	3:34	32° / W	14.3-14.62 (V)	0.1	58413.50616+0.3559661*E
CzeV688 Per	P	-	4:40	22° / N	13.3-13.6 (C)	3	54375.7653+3.46775*E
CzeV1575 Gem	P	-	4:43	21° / W	12.74-12.88 (V)	0.1	58135.9715+0.570519*E
CzeV714 Cep	P	-	5:20	27° / N	10.57-10.77 (C)	1	51324.7463+3.79464*E
SvkV 20 And	P	-	19:16	67° / W	11.5-11.8 (V)	EA	55482.323+1.1854*E
CzeV1565 Ori	S	-	19:27	44° / E	13.65-13.80 (V)	0.1	58515.58099+0.550467*E
CzeV208 Cam	S	-	19:39	80° / NE	12.2-24.2 (R)	EB	55650.318182+0.41125*E
V1094 Cas	P	-	19:42	72° / NW	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV323 Cyg	P	-	19:59	28° / NW	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	20:1	28° / NW	12.5-12.5 (C)	EW	55832.7365+0.429145*E
SvkV098 Aur	P	-	20:36	80° / E	12.11-12.39 (V)	1	57646.36457+0.4309828*E
CzeV 1249 Cam	S	-	20:42	85° / N	12.97-13.38 (V)	6	57605.874+1.363574*E
CzeV268 Per	P	-	20:54	72° / SW	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV623 And	S	-	20:55	62° / W	12,33-12,47 (clear)	EW	54333+0.466395*E
CzeV134 Cas	P	-	20:55	30° / NE	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
CzeV1566 Ori	P	-	21:36	59° / SE	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
CzeV1568 Ori	P	-	21:37	60° / SE	13.7-13.82 (V)	0.1	58515.31494+0.924611*E
CzeV1502 Cas	S	-	21:50	54° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV1575 Gem	S	-	21:53	48° / SE	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
TYC 3807- UMa	P	-	22:2	54° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
SvkV67 Cep	P	-	22:24	43° / NW	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV1570 Ori	P	-	22:33	61° / S	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
CzeV265 And	P	-	22:39	51° / W	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV1574 Gem	S	-	22:46	52° / S	16.32-16.66 (V)	0.1	58513.70223+0.236793*E
bet Per	P	-	22:47	57° / W	2.12-3.39 (V)	EA	45641.5135+2.8673043*E
CzeV267 And	S	-	23:1	48° / W	15.8-16.3 (C)	EW	55808.45184+0.2954*E
CzeV1559 Gem	S	-	23:18	54° / S	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV252 UMi	P	-	23:24	47° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV623 And	P	-	23:35	37° / W	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV1567 Ori	S	-	23:38	58° / SW	14.97-15.22 (V)	0.1	58397.36738+0.585775*E

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