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[vsnet-obs 12609] NAS.VSS obs. 1998 May 3-June 13 UT (Report 1998v-059)
- Date: Sat, 13 Jun 1998 19:56:43 +0200
- To: vsnet-obs@kusastro.kyoto-u.ac.jp, observations@aavso.org, dave@telf-ast.demon.co.uk
- From: "Bjorn H. Granslo" <b.h.granslo@astro.uio.no>
- Subject: [vsnet-obs 12609] NAS.VSS obs. 1998 May 3-June 13 UT (Report 1998v-059)
- CC: dahle@hale.IFA.Hawaii.Edu, ornulf.midtskogen@salusansvar.no, b.h.granslo@astro.uio.no
- Organization: Institute of Theoretical Astrophysics
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
Norwegian Astronomical Society - Variable Star Section
Visual observations by observers of NAS.VSS (Report 1998v-059):
Object YYMMDD(UT) Mag Obs. Instrum. Remarks
ANDDX 980504.00 <13.8 MOK M316;270x Est. v < l
CASV723 980503.98 11.9 MOK M316;130x Est. f 5 v 2 g
CASV723 980512.99 11.7 MOK M316;130x Est. f 3 v 5 g
CASV723 980515.97 11.8 MOK M316;130x Est. f 4 v 3 g
CRBT 980613.00 10.1 GRL C203;100x Seq. Tycho (V-mag)
CYGCH 980612.99 9.1 GRL C203;100x
CYGSS 980609.00 9.4 GRL C203;100x Active
CYGSS 980610.99 9.1 GRL C203;100x Active
CYGSS 980612.99 9.6 GRL C203;100x Active
PERGK 980503.90 <12.8 MOK M316;270x Est. v < w
PERUV 980503.99 <13.9 MOK M316;270x Est. v < h
SCTR 980609.00 6.7 GRL C203;100x
SCTR 980612.99 6.8 GRL C203;100x
SN1998S 980503.93 14.1 MOK M316;270x Est. g 3 v 2 h'
SN1998S 980507.01 14.0 MOK M316;270x Est. g 4 v 3 h'
SN1998S 980512.95 14.0 MOK M316;270x Est. g 3 v 4 h
SN1998S 980516.33 14.4 DAH M256;169x Est. C-5;V=D (class 2)
SN1998S 980523.33 14.9 DAH M256;169x Est. D-4;E+4 (class 2)
SN1998S 980525.28 15.0 DAH M256;169x Est. D-4;E+2 (class 2)
SN1998S 980526.37 15.0 DAH M256;169x Est. D-6;E+3 (class 2)
SN1998aq 980503.93 11.8 MOK M316;130x Est. a 3 v 1 b
SN1998aq 980512.96 12.8 MOK M316;130x Est. c 3 v 4 d
SN1998aq 980516.31 12.7 DAH M256;169x Est. 124-3;130+3; (2)
SN1998aq 980517.30 12.9 DAH M256;169x Est. 124-6;130+2 (1)
SN1998aq 980523.35 13.4 DAH M256;169x Est.130-4;136+2;137+3(1)
SN1998aq 980525.31 13.5 DAH M256;169x Est.130-4;136+1;137+2(1)
SN1998aq 980526.38 13.6 DAH M256;169x Est.130-6;V=136;137+1(1)
SN1998bu 980516.32 11.7 DAH M256;84x Est. 114-3;126+8 (1)
SN1998bu 980517.31 11.6 DAH M256;84x Est. 114-2;126+10 (1)
SN1998bu 980523.36 11.6 DAH M256;169x Est. 114-2;126+10 (1)
SN1998bu 980525.32 11.8 DAH M256;169x Est. 114-4;126+9 (1)
SN1998bu 980526.39 11.6 DAH M256;84x Est. 114-2;126+10 (1)
Observers:
DAH = Haakon Dahle (Honolulu, Hawaii, USA). Instrument: 25.6-cm
reflector (M256). Observations are Pogson step estimates.
Sequences were Hanzl V-magnitudes for SN 1998S, AAVSO (using GSC)
for SN 1998 aq, and AAVSO/Thompson & Bryan chart for SN 1998 bu.
GRL = Bjorn H. Granslo (Fjellhamar, Norway). Instrument: 20.3-cm
SCT (C203). AAVSO sequences unless noted. Cloudy on June 8-9 and
June 10-11, partly cloudy on June 12-13. Strong twilight. Note:
Odd behaviour of SS Cygni.
MOK = Oernulf Midtskogen (Tranby, Norway). Instrument: 31.6-cm f/5
reflector (M316). Observations are Argelander step estimates.
Magnitudes are derived from private sequences.
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