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
CzeV1575 Gem	S	-	0:10	34° / E	12.74-12.80 (V)	0.1	58136.25675+0.570519*E
CzeV270 Cyg	S	-	0:15	25° / NW	10.6-10.8 (C)	2.9	54299.1601+1.87792*E
TYC 3807- UMa	P	-	0:42	44° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
CzeV1566 Ori	P	-	0:45	54° / SE	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
CzeV622 Per	P	-	0:54	74° / NW	13.2-13.85 (V)	3	54417.9408+2.894365*E
CzeV1574 Gem	S	-	0:58	41° / SE	16.32-16.66 (V)	0.1	58513.70223+0.236793*E
CzeV252 UMi	P	-	1:17	46° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV1570 Ori	S	-	1:45	59° / S	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV1565 Ori	P	-	2:2	61° / S	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
CzeV268 Per	P	-	2:12	60° / W	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
SvkV67 Cep	S	-	2:26	43° / NW	13.66-14.16 (V)	EW	57518.54553+0.3352*E
SvkV 39 Lac	S	-	3:0	26° / NW	11.4-11.4 (V)	2	56495.252+1.446856*E
CzeV265 And	P	-	3:12	46° / NW	15.9-16.4 (C)	EW	55796.55235+0.3647*E
CzeV1502 Cas	S	-	3:17	44° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV267 And	P	-	3:26	44° / NW	15.8-16.5 (C)	EW	55807.42028+0.2954*E
V1094 Cas	P	-	3:55	41° / NW	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV1559 Gem	S	-	4:2	54° / S	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
SvkV098 Aur	S	-	4:4	68° / W	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV266 And	P	-	4:4	39° / NW	14.9-15.3 (Clear)	EA	51999.818+1.0077*E
CzeV1503 Cas	S	-	4:8	39° / NW	14.5-14.62 (V)	0.1	58487.907396+0.757672*E
CzeV623 And	S	-	4:9	31° / W	12,33-12,47 (clear)	EW	54333+0.466395*E
CzeV208 Cam	S	-	4:30	55° / NW	12.2-24.2 (R)	EB	55650.318182+0.41125*E
bet Per	P	-	17:40	31° / NE	2.12-3.39 (V)	EA	45641.5135+2.8673043*E
CzeV266 And	S	-	19:0	56° / E	14.9-15.7 (Clear)	EA	52000.4478+1.0077*E
CzeV1503 Cas	P	-	19:2	67° / NE	14.5-14.62 (V)	0.1	58487.52856+0.757672*E
CzeV623 And	P	-	19:38	56° / E	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV343B Aur	P	-	20:3	22° / NE	13.47-13.59 (V)	4.4	55968.33977+0.806931*E
CzeV132 Lac	P	-	20:11	78° / W	15.6-16.3 (C)	EW	54337.43655+0.33658*E
CzeV 1249 Cam	S	-	20:46	56° / NE	12.97-13.38 (V)	6	57605.874+1.363574*E
KIC 98322 Cyg	S	-	21:3	42° / NW	12.27-12.27 (0.19)	EW	55688.73+0.4579485*E
CzeV1570 Ori	P	-	21:37	27° / E	12.99-13.12 (V)	0.1	58519.36502+0.345053*E
V1094 Cas	S	-	21:45	81° / N	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
CzeV1502 Cas	P	-	21:51	79° / N	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
TYC 3807- UMa	S	-	21:58	26° / NE	9.5-9.7 (V)	1	56268.04293675+0.2277135*E
SvkV23 Lac	S	-	22:17	57° / W	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
SvkV67 Cep	P	-	22:23	61° / NW	13.66-14.26 (V)	EW	57518.37698+0.3352*E
SvkV 20 And	S	-	22:34	73° / W	11.5-11.5 (V)	EA	55482.916+1.1854*E
CzeV1567 Ori	P	-	22:38	37° / E	14.97-15.59 (V)	0.1	58397.0745+0.585775*E
HD 213597 Aqr	P	-	22:49	22° / SW	7.790-7.815 (V)	4.7	55799.3292+2.4238*E
SvkV098 Aur	P	-	22:51	64° / E	12.11-12.39 (V)	1	57646.36457+0.4309828*E
V0538 Peg	P	-	22:51	45° / W	12.54-12.64 (V)	1	58410.45142+0.888628*E
TYC 3807- UMa	P	-	23:6	33° / NE	9.45-9.77 (V)	1	56346.7849+1.305502*E
CzeV208 Cam	P	-	23:33	80° / NE	12.2-24.1 (R)	EB	55650.522528+0.41125*E
CzeV1559 Gem	P	-	23:46	31° / E	14.3-14.62 (V)	0.1	58413.50616+0.3559661*E
CzeV267 And	S	-	23:49	77° / W	15.8-16.3 (C)	EW	55808.45184+0.2954*E

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