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	-	0:1	23° / NE	9.5-9.7 (V)	1	56267.92908+0.2277135*E
SvkV 20 And	S	-	0:10	81° / SW	11.5-11.5 (V)	EA	55482.916+1.1854*E
SvkV098 Aur	P	-	0:36	57° / NE	12.11-12.39 (V)	1	57646.36457+0.4309828*E
CzeV267 And	P	-	0:52	87° / SE	15.8-16.5 (C)	EW	55807.42028+0.2954*E
CzeV623 And	P	-	0:58	76° / S	12,33-12,48 (clear)	EW	54333.578+0.466395*E
CzeV268 Per	P	-	1:12	76° / SE	14.4-15.3 (Clear)	EW	55808.2512+0.38818*E
CzeV271 Aur	P	-	1:15	43° / E	14.9-16.1 (Clear)	3.8	55831.5888+0.88712*E
SvkV67 Cep	P	-	1:19	59° / NW	13.66-14.26 (V)	EW	57518.37698+0.3352*E
CzeV134 Cas	P	-	1:26	23° / N	11.45-11.63 (Rc)	RRc	53236.50412+0.419794*E
CzeV1575 Gem	P	-	1:37	24° / E	12.74-12.88 (V)	0.1	58135.9715+0.570519*E
CzeV1559 Gem	S	-	1:55	27° / E	14.3-14.62 (V)	0.1	58413.684143+0.3559661*E
CzeV1566 Ori	P	-	2:11	46° / SE	14.77-15.28 (V)	0.1	58116.8795+0.348075*E
KIC 98322 Cyg	P	-	2:16	22° / NW	12.27-12.46 (0.19)	EW	55688.49913+0.4579485*E
CzeV1502 Cas	S	-	2:23	68° / NW	13.63-13.74 (V)	0.1	58487.6767235+0.452827*E
CzeV1565 Ori	P	-	2:28	49° / SE	13.65-14.04 (V)	0.1	58515.30576+0.550467*E
TYC 3807- UMa	P	-	2:28	38° / NE	9.45-9.77 (V)	1	56346.7849+1.305502*E
V1094 Cas	P	-	2:32	70° / NW	12.19-12.66 (Rc)	EB	54543.792+0.5142909*E
CzeV1570 Ori	S	-	2:49	51° / SE	12.99-13.12 (V)	0.1	58519.5375465+0.345053*E
CzeV177 Gem	P	-	2:54	38° / SE	12.8-13.1 (C)	EW	55155.52868+0.359857*E
SvkV23 Lac	S	-	3:8	35° / W	12.25-12.50 (C)	EW	54387.55111+0.3499823*E
CzeV132 Lac	P	-	3:27	34° / NW	15.6-16.3 (C)	EW	54337.43655+0.33658*E
CzeV208 Cam	P	-	3:30	82° / NW	12.2-24.1 (R)	EB	55650.522528+0.41125*E
SvkV 39 Lac	P	-	18:48	66° / NE	11.4-11.4 (V)	2	56494.529+1.446856*E
SvkV098 Aur	S	-	19:29	21° / NE	12.11-12.39 (V)	1	58787.39349+0.4309828*E
CzeV265 And	P	-	20:9	44° / NE	15.9-16.4 (C)	EW	55796.55235+0.3647*E
V1094 Cas	S	-	20:22	56° / NE	12.19-12.53 (Rc)	EB	54683.42245+0.5142909*E
V 994B Her	S	-	20:27	47° / W	6.93-7.02 (Hp)	4.4	53870.959+1.420033*E
KIC 98322 Cyg	S	-	20:49	67° / W	12.27-12.27 (0.19)	EW	55688.73+0.4579485*E
CzeV1502 Cas	P	-	20:57	63° / NE	13.63-13.79 (V)	0.1	58487.45031+0.452827*E
CzeV266 And	P	-	21:3	52° / E	14.9-15.3 (Clear)	EA	51999.818+1.0077*E
CzeV267 And	S	-	21:16	54° / E	15.8-16.3 (C)	EW	55808.45184+0.2954*E
V0538 Peg	S	-	21:19	70° / S	12.54-12.64 (V)	1	57943.18+0.888628*E
SvkV67 Cep	S	-	21:19	69° / N	13.66-14.16 (V)	EW	57518.54553+0.3352*E
CzeV261 Cyg	P	-	21:24	53° / W	13.28-13.64 (C)	EW	55732.40643+0.335595*E
CzeV1503 Cas	P	-	21:50	70° / NE	14.5-14.62 (V)	0.1	58487.52856+0.757672*E
DT Cam	P	-	22:1	39° / NE	8.166-8.228 (Hp)	EA	48501.355+7.06625*E
CzeV623 And	S	-	22:17	57° / E	12,33-12,47 (clear)	EW	54333+0.466395*E
CzeV208 Cam	S	-	22:36	53° / NE	12.2-24.2 (R)	EB	55650.318182+0.41125*E
SvkV23 Lac	P	-	22:56	73° / SW	12.25-12.60 (C)	EW	54387.7261+0.3499823*E
CzeV252 UMi	P	-	23:25	48° / N	14.9-15.2 (C)	EW	55689.411015+0.29518*E
CzeV323 Cyg	P	-	23:42	53° / W	12.5-12.8 (C)	EW	57624.41516+0.429145*E
CzeV323 Cyg	S	-	23:44	53° / W	12.5-12.5 (C)	EW	55832.7365+0.429145*E

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