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[vsnet-obs 11847] NAS.VSS obs. 1998 May 10-13 UT (Report 1998v-055)
- Date: Wed, 13 May 1998 20:07:38 +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 11847] NAS.VSS obs. 1998 May 10-13 UT (Report 1998v-055)
- CC: dahle@hale.IFA.Hawaii.Edu, 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-055):
Object YYMMDD(UT) Mag Obs. Instrum. Remarks
ANDR 980512.99 8.1 GRL C203;80x
ANDZ 980513.01 11.1 GRL C203;80x Seq. Skiff (PEP-V)
ANDRX 980512.99 11.7 GRL C203;287x Active
AQLS 980510.98 10.6 GRL C203;100x
AURSS 980512.03 10.8 GRL C203;287x Outburst
AURSS 980512.98 11.0 GRL C203;287x Outburst
CAMZ 980510.97 13.0 GRL C203;287x
CAMCI 980512.99 11.7 GRL C203;287x Seq. TYC+TIC (V-mag)
CASV723 980512.025 12.2 GRL C203;287x V-seq. Skiff+S&G
CASV723 980512.980 12.1 GRL C203;287x Seq. SK+S&G (PEP-V)
CRBR 980510.89 5.9 GRL B10x50
CRBT 980510.98 10.4 GRL C203;100x
CRBT 980512.02 10.4 GRL C203;80x
CRBT 980513.01 10.4 GRL C203;80x
CVNTX 980512.02 9.9 GRL C203;80x
CYGSS 980510.98 8.6 GRL C203;100x Outburst
CYGSS 980512.02 8.4 GRL C203;80x Outburst
CYGSS 980513.00 8.6 GRL C203;80x Outburst
CYGBF 980510.98 12.1 GRL C203;100x Seq. Skiff (PEP-V)
CYGBF 980513.00 12.0 GRL C203;287x Seq. Skiff (PEP-V)
CYGCH 980510.98 9.3 GRL C203;100x
CYGCH 980513.00 9.2 GRL C203;80x
CYGCI 980510.98 11.0 GRL C203;100x
CYGCI 980513.00 11.0 GRL C203;80x
CYGEM 980513.00 13.1 GRL C203;287x Active
CYGV482 980510.98 11.1 GRL C203;100x
CYGV482 980513.00 11.1 GRL C203;80x
CYGV1016 980510.98 10.5 GRL C203;100x
CYGV1016 980513.00 10.5 GRL C203;80x
DELT 980510.98 10.8 GRL C203;100x
DELV 980510.98 10.9 GRL C203;100x
DRAAB 980513.01 12.8 GRL C203;287x Outburst
DRAAG 980512.02 9.9 GRL C203;80x
HERAH 980510.99 12.0 GRL C203;100x Outburst
HERAH 980513.01 12.6 GRL C203;287x Active, fainter
HYAR 980510.89 5.0 GRL B10x50 Seq. HIP (V-mag)
LEOR 980512.99 10.2 GRL C203;287x
OPHRS 980510.98 11.7 GRL C203;100x Seq. BAA.VSS
OPHRS 980512.03 11.6 GRL C203;287x Seq. BAA.VSS
OPHRS 980513.01 11.6 GRL C203;287x Seq. BAA.VSS
PEGII 980512.99 7.8 GRL C203;80x Seq. NAS.VSS
PERX 980512.89 6.6 GRL L70;24x Seq. HIP (V-mag)
PERGK 980512.98 <12.3 GRL C203;287x
SCTR 980510.99 6.0 GRL B10x50
SGER 980510.98 9.2 GRL C203;100x Seq. AFOEV
SGER 980513.00 9.1 GRL C203;80x Seq. AFOEV
SGEV 980510.97 10.6 GRL C203;100x
SGEV 980512.99 10.7 GRL C203;80x
SGEFG 980510.97 11.7 GRL C203;287x Seq. Ouda (CCD-V)
SGEFG 980513.00 11.9 GRL C203;287x Fainter, seq.Ouda etc.
SGEHM 980510.97 11.2 GRL C203;100x
UMAS 980512.03 8.1 GRL C203;80x
UMAZ 980512.03 7.4 GRL C203;80x
UMARS 980512.04 8.5 GRL C203;80x Bright
VULWW 980510.97 11.3 GRL C203;100x Seq. AFOEV
VULWW 980512.99 11.3 GRL C203;80x Seq. AFOEV
VULPU 980510.97 11.5 GRL C203;100x Seq. BAA.VSS
VULPU 980512.99 11.5 GRL C203;80x Seq. BAA.VSS
SN1998S 980513.28 14.3 DAH M256;169x Est. C-5;D+2 (class 1)
SN1998aq 980510.966 12.6 GRL C203;287x Est. A-6;B+5, seq. GSC
SN1998aq 980512.019 12.8 GRL C203;287x Est. A-8;B+3, seq. GSC
SN1998aq 980512.978 12.8 GRL C203;287x Est. A-9;B+3, seq. GSC
SN1998aq 980513.28 12.8 DAH M256;169x Est. 124-4;130+2 (cl.1)
SN1998bn 980513.26 14.4 DAH M256;169x Est. a-8;b-6;c+2 (cl.1)
SN1998bu 980513.28 12.1 DAH M256;169x Est. 114-8;126+5 (cl.1)
TAV003359 980513.01 10.7 GRL C203;80x Seq. TA
Observers:
DAH = Haakon Dahle (Honolulu, HI, USA). Instrument: 25.6-cm reflector.
Sequences for SN 1998bn, SN 1998Sm SN 1998aq and SN 1998bu were GSC
(via AAVSO chart), Hanzl CCD-V (via NAS.VSS), GSC (via AAVSO) and
Thompson & Bryan (AAVSO), respectively. Comparison stars for 1998bn
were a = GSC 6682-0729, b = GSC 6682-0861, c = GSC 6682-0006.
All observations were of class 1 which refer to the accuracy of the
brightness estimates, not the magnitudes of the comparison stars.
GRL = Bjorn H. Granslo (Fjellhamar, Norway). Instruments: 20.3-cm SCT
(C203), 7.0-cm f/6.8 refractor (L70), 10x50 binoculars (B10x50).
AAVSO sequences unless noted. Observation of X Per from Tryvann,
Oslo in bright twilight, others from Fjellhamar. Conditions:
clear to partly cloudy, nautical-astronomical twilight, Moon.
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