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AG Draconis in Outburst - Photometry Update No. 1
- To: "varstars@lists.funet.fi"@gollum.uio.no
- Subject: AG Draconis in Outburst - Photometry Update No. 1
- Cc: GRANSLO@gollum.uio.no
0010
0020 OUTBURST OF AG DRACONIS --- PHOTOMETRY UPDATE NO. 1 (1994/06/16)
0030
0040 AG Dra [ZAND] Magn.: 8.9 p - 11.8 p Spec.: KIIIep
0050 R.A. = 16h 01m 41s.0 Decl. = +66d 48' 09" (J2000.0)
0060
0070 Other identifications: AG Dra = SAO 16931 = BD +67 922 = AGK3 +66 715.
0080 Orbital ephemeris by Meinunger (1979): Max(U) = JD 243 8900 + 554 E.
0090 Variability was discovered by E. M. Janssen and A. N. Vyssotsky (1943).
0190
0200 The data were taken from the General Catalogue of Variable Stars,
0210 4th edition (P. N. Kholopov et al., 1985) and S. J. Kenyon's book
0220 "The Symbiotic Stars" (1986).
0290
0300 This report contains available photometric observations since April 1.
0310 The observations indicate that this symbiotic variable has entered a
0320 bright outburst, the first major outburst since 1980. In 1980 the star
0330 rose from V = 10 to V = 8 during a period of some weeks and the star
0340 remained bright for about two years. Photometric and spectroscopic
0340 observations are urgently needed!
0490
0500 Sequences:
0510 *AC AAVSO preliminary chart (sequence by Tsesevich)
0590
0600 Magnitude systems:
0610 *mv Visual
0690
0700 Sources:
0710 *VSOLJ Variable Star Observers League in Japan (VSOLJ)
0720 c/o Taichi Kato
0730 *NAS.VSS Norwegian Astronomical Society - Variable Star Section
0740 c/o Bjorn H. Granslo (granslo@argo.uio.no)
0750 *SAAF SAAF, Svensk Amat|rAstronomisk F|rening (Sweden)
0760 c/o Hans Bengtsson (hanben@saaf.se)
0770 *Mail(poy) Gary Poyner (gp@starlink.space-research.birmingham.ac.uk)
0780 *Mail(jpz) Jochen Pietz (jpietz@astro.uni-bonn.de)
0790 *HAA/VSS Hungarian Astronomical Association - Variable Star Section
0800 c/o Attila Mizser (H697Kon@HUELLA.BITNET)
0890
0900 Time system is year, number of month and date with decimals in U.T.
0999
1000---------------------------------------------------------------------------
1010 YYYY+
1020 MM DD.DDD MAGN MS SEQ OBSERVER NOTES SOURCE
1030---------------------------------------------------------------------------
1040
1994 04 03.577 9.9 mv *Takenaka, Y. 20.3-cm SCT VSOLJ
1994 04 05.906 10.1 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 04 06.003 9.8 mv *Westlund, M. 20.3-cm SCT SAAF
1994 04 08.07 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (80x) NAS.VSS
1994 04 08.96 9.8 mv *Westlund, M. 20.3-cm SCT SAAF
1994 04 11.95 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 04 12.88 9.7 mv *Westlund, M. 20.3-cm SCT SAAF
1994 04 12.92 9.9 mv AC *Bengtsson, H. 15 -cm refl. SAAF
1994 04 13.95 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 04 14.909 10.0 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 04 17.994 9.8 mv *Poyner, G. 20 -cm refl. Mail(poy)
1994 04 18.00 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 04 18.865 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 04 28.572 9.7 mv *Takahashi, S. VSOLJ
1994 04 28.936 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 01.002 9.8 mv *Poyner, G. 40 -cm refl. Mail(poy)
1994 05 01.956 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 02.918 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 04.03 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 05 06.497 10.1 mv *Takenaka, Y. 20 -cm SCT VSOLJ
1994 05 07.963 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 09.97 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 05 11.896 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 11.97 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 05 13.865 10.1 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 13.9 9.8 mv *Zajacz, G. 6.3-cm refr. HAA/VSS
1994 05 14.93 9.9 mv AC *Bengtsson, H. 15 -cm refl. SAAF
1994 05 16.615 9.6 mv *Shioi, H. 10 -cm refl. VSOLJ
1994 05 15.920 10.0 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 17.901 10.0 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 19.561 10.1 mv *Takenaka, Y. 20.3-cm SCT VSOLJ
1994 05 19.94 10.0 mv AC *Bengtsson, H. 15 -cm refl. SAAF
1994 05 20.00 9.9 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 05 21.988 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 23.909 9.9 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 26.99 9.8 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 05 28.94 9.6 mv AC *Bengtsson, H. 15 -cm refl. SAAF
1994 05 30.01 9.6 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 05 30.874 9.8 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 31.009 9.3 mv *Poyner, G. 20 -cm refl. Mail(poy)
1994 05 31.886 9.7 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 05 31.95 9.4 mv AC *Bengtsson, H. 15- cm refl. SAAF
1994 06 01.900 9.3 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 06 02.944 9.3 mv AC *Pietz, J. 20.3-cm SCT Mail(jpz)
1994 06 02.99 9.3 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 06 03.660 9.7 mv *Takenaka, Y. 20.3-cm SCT VSOLJ
1994 06 03.695 9.1 mv *Watanabe, Y. 10 -cm Bino (20x) VSOLJ
1994 06 04.96 9.3 mv AC *Granslo, B. H. 20.3-cm SCT (123x) NAS.VSS
1994 06 04.989 9.3 mv *Poyner, G. 40 -cm refl. Mail(poy)
1994 06 11.978 9.3 mv *Poyner, G. 22 -cm refl. Mail(poy)
1994 06 13.88 8.7 mv *Szentasko, L. 33.4-cm refl.? HAA/VSS
1994 06 14.625 8.4 mv *Takenaka, Y. 20.3-cm SCT VSOLJ
1994 06 14.974 9.3 mv *Poyner, G. 22 -cm refl. Mail(poy)
1994 06 15.78 8.6 mv *Mizser, A. 6 -cm Bino (20x) HAA/VSS
2999
2960
2970---------------------------------------------------------------------------
2980
4990
5000 +++ List of Observers +++
5090
5100 VSOLJ
5110 *(Y. Takenaka, Kyoto, Japan); (S. Takahashi, Shiga, Japan);
5120 *(H. Shioi, Chiba, Japan); (Y. Watanabe, Kanagawa, Japan)
5190
5200 Mail(jpz)
5210 *(Jochen Pietz, Germany)
5290
5300 SAAF
5310 *(M. Westlund, Uppsala, Sweden); (H. Bengtsson, Hisings Backa, Sweden)
5390
5400 NAS.VSS
5410 *(B. H. Granslo, Fjellhamar, Norway)
5490
5500 Mail(poy)
5510 *(G. Poyner, Birmingham, England)
5590
5600 HAA/VSS
5610 *(G. Zajacz, Debrecen, Hungary); (L. Szentasko, Veresegyhaz, Hungary);
5620 *(A. Miszer, Budapest, Hungary)
9790
9800 (( Acknowledgements ))
9810
9820 In compiling these updates, we would like to thank organizations and
9830 individuals from all over the world for their efforts in supplying
9840 vital observations of this variable star!!
9890
9900 Compiled by Bjorn H. Granslo (NAS.VSS)
9940
9950 ----
9960 Norwegian Astronomical Society - Variable Star Section
9970 Bjorn H. Granslo (bgranslo@astro.uio.no)
9980 Variable Star Observers League in Japan ( = VSOLJ )
9990 Yasuto Takenaka (KFA02524@NiftyServe.or.jp)