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Date: Fri, 8 May 1992 16:31:32 +0200
From: granslo@argo.uio.no
Norwegian Astronomical Society - Variable Star Section
VARIABLE STARS - REPORT OF 1992 MAY 8
1) Observations of Dwarf Novae by H. Dahle, Oslo, Norway:
Variable 1992 UT Mag. Variable 1992 UT Mag. Variable 1992 UT Mag.
YZ Cnc May 7.95 11.8 SS Cyg May 3.93 12.1 SS Cyg May 7.94 12.0
EM Cyg May 3.92 12.5 EM Cyg May 7.92 12.8 U Gem May 3.93 12.3
AH Her May 2.93 12.1 AH Her May 3.88 12.1 AH Her May 7.91 12.6
T LEO MAY 3.90 <13.6 T LEO MAY 7.91 10.8 TZ Per May 3.94 13.2
HV Vir May 3.92 13.8: HV Vir May 7.91 <13.3
Stars in outburst: YZ Cnc, EM Cyg, U Gem, AH Her, T Leo (rare maximum),
TZ Per, HV Vir.
2) Observations of Dwarf Novae by B. H. Granslo, Fjellhamar, Norway:
Variable 1992 UT Mag. Variable 1992 UT Mag. Variable 1992 UT Mag.
Z Cam May 3.90 11.0 Z Cam May 5.99 11.5 Z Cam May 6.94 11.6
SS Cyg May 3.91 11.9 SS Cyg May 6.00 11.9 SS Cyg May 7.00 11.9
EM Cyg May 3.93 12.4 EM Cyg May 6.00 12.7 EM Cyg May 7.01 12.9
AB Dra May 7.00 12.6 U Gem May 3.90 12.3 AH Her May 3.91 12.5
AH Her May 6.00 12.5 AH Her May 6.94 12.5
Stars in outburst: Z Cam, EM Cyg, AB Dra, U Gem, AH Her.
3) Nova Cygni 1992. Recent observations by H. Dahle and B. H. Granslo place
it at visual magnitude 8.1 - 8.3.
4) PG 0943+521 in Ursa Major. This is cataclysmic binary included in the
Palomar Green Survey of Ultraviolet Excess Stellar Objects. M. Iida of
Nagano, Japan has detected an outburst of this object on Apr. 26.521 UT
at mv = 12.5. The variable was detected photographically by M. Mobberly
of Cockfield, Bury St Edmunds, England on May 2.911 UT at mpv = 12.3
(ref. TA E-Circular 635, 636). The following observations indicate that
this object is currently fading after maximum: May 6.94 UT, mv = 13.2
(B. H. Granslo, Fjellhamar, Norway); May 7.94 UT, mv = 13.4 (H. Dahle,
Oslo, Norway). PG 0943+521 is located at RA = 9h 43.7m, Dec = +52deg 08'
(1950.0).
Bjorn H. Granslo
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