------------------------------------------------------ PHOTOMETRIC CCD OBSERVATIONS OF VARIABLE STARS ------------------------------------------------------ CENTER FOR BACKYARD ASTROPHYSICS (CBA) DENMARK Observer : Lasse Teist Jensen Address : Suhrs Alle 5, DK - 3520 Farum , Denmark E-mail : ltj@tt.dk CBA Denmark Page: http://vsnet.astro.columbia.edu/~cba/dk Instruments: 0.25-m f/6.3 SCT , ST-6 SBIG CCD Dear Colleagues, Selected CCD results: 1556+33 VW CRB 2450680.3395 1997-08-19 0.8395 16.1, OUTBURST 0203+56A UV PER 2450680.3458 1997-08-19 0.8458 <16.4 1621+39 V844 HER 2450680.3493 1997-08-19 0.8493 <16.5 1759+05 VAR25 OPH 2450680.3534 1997-08-19 0.8534 <16.4 1906+29 V419 LYR 2450680.3555 1997-08-19 0.8555 <16.6 1817+38 V391 LYR 2450680.3576 1997-08-19 0.8576 <16.9 1858+42 V493 LYR 2450680.3624 1997-08-19 0.8624 <16.5 1804+38 PR HER 2450680.3680 1997-08-19 0.8680 <16.5 1841+43 V344 LYR 2450680.3597 1997-08-19 0.8597 <16.5 1905+42 V363 LYR 2450680.3659 1997-08-19 0.8659 <16.9 1930+31 V795 CYG 2450680.3694 1997-08-19 0.8694 <16.4 2158+41 BL LAC 2450680.3708 1997-08-19 0.8708 13.5, bright 2048+43 V751 CYG 2450680.3736 1997-08-19 0.8736 16.2 1925+42 V1504 CYG 2450680.3791 1997-08-19 0.8791 16.0 1920+52 V1113 CYG 2450680.4055 1997-08-19 0.9055 <16.5 2027+52 V1974 CYG 2450680.3909 1997-08-19 0.8909 16.4 0000+00 VAR PSC 2450680.3965 1997-08-19 0.8965 15.2 2318+17 IP PEG 2450680.4006 1997-08-19 0.9006 15.3 0000+00 V747 CYG 2450680.4076 1997-08-19 0.9076 12.1 2131+40 V630 CYG 2450680.4131 1997-08-19 0.9131 15.5, outburst 2131+39 V632 CYG 2450680.4111 1997-08-19 0.9111 <16.3 2137+48 V1251 CYG 2450680.4159 1997-08-19 0.9159 <16.5 2103+36 V1060 CYG 2450680.4201 1997-08-19 0.9201 <16.3 0112+63 V635 CAS 2450680.4340 1997-08-19 0.9340 15.3 0211+40 KV AND 2450680.4493 1997-08-19 0.9493 <16.0 0036+26 LL AND 2450680.4465 1997-08-19 0.9465 <16.0 0046+53 V452 CAS 2450680.4437 1997-08-19 0.9437 15.8, both components of the double star are still visible. I don't know if this is an outburst or if around mag 16 is the normal state of V452 Cas. 0101+42 IZ AND 2450680.4534 1997-08-19 0.9534 <15.8 2322+49 BV AND 2450680.4604 1997-08-19 0.9604 <16.5 1556+33 VW CRB 2450679.3416 1997-08-18 0.8416 <17.2 2158+41 BL LAC 2450679.3513 1997-08-18 0.8513 13.5, bright 1621+39 V844 HER 2450679.3444 1997-08-18 0.8444 <16.5 1759+05 VAR25 OPH 2450679.3493 1997-08-18 0.8493 <16.4 1817+38 V391 LYR 2450679.3624 1997-08-18 0.8624 <16.8 1858+42 V493 LYR 2450679.3645 1997-08-18 0.8645 <16.2 2048+43 V751 CYG 2450679.3590 1997-08-18 0.8590 <16.1 1905+42 V363 LYR 2450679.3666 1997-08-18 0.8666 <16.9 1804+38 PR HER 2450679.3715 1997-08-18 0.8715 <16.5 2137+48 V1251 CYG 2450679.375 1997-08-18 0.8750 <16.5 1927+33 V792 CYG 2450679.3756 1997-08-18 0.8756 <16.5 1930+31 V795 CYG 2450679.3743 1997-08-18 0.8743 <16.4 1958+16 RZ SGE 2450679.3833 1997-08-18 0.8833 <16.5 2003+17 WZ SGE 2450679.3854 1997-08-18 0.8854 15.9 1954+16 AW SGE 2450679.3895 1997-08-18 0.8895 <15.7 2020+15 EZ DEL 2450679.4013 1997-08-18 0.9013 <15.7 1955+22 SW VUL 2450679.3930 1997-08-18 0.8930 <16.0 1937+21 FY VUL 2450679.3986 1997-08-18 0.8986 14.7 1920+52 V1113 CYG 2450679.4083 1997-08-18 0.9083 <16.5 0046+53 V452 CAS 2450679.4305 1997-08-18 0.9305 16.0 0043+56B GX CAS 2450679.4402 1997-08-18 0.9402 <16.7, no outburst 0000+00 VAR PSC 2450679.4458 1997-08-18 0.9458 15.4 0109+37 FO AND 2450679.4493 1997-08-18 0.9493 <16.5 0036+26 LL AND 2450679.4534 1997-08-18 0.9534 <16.0 Regards Lasse Teist Jensen (JLT)