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[vsnet-obs 17136] NAS.VSS 1998 Oct 11-23 UT, IP Pegasi
- Date: Sat, 24 Oct 1998 20:10:34 +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 17136] NAS.VSS 1998 Oct 11-23 UT, IP Pegasi
- CC: bill.worraker@aeat.co.uk, Stein.Hoydalsvik@ub.uit.no, ltheen@unik.no, b.h.granslo@astro.uio.no
- Sender: owner-vsnet-obs@kusastro.kyoto-u.ac.jp
Norwegian Astronomical Society - Variable Star Section
Visual observations by observers of NAS.VSS (Report 1998h-017):
Object YYMMDD(UT) Mag Obs. Instrum. Remarks
ANDAR 981020.89 <13.5 GRL C203;287x Seq. Ouda (CCD-V)
ANDAR 981023.80 12.7 GRL C203;287x Active, seq. Ouda
ANDDX 981023.84 <14.0 GRL C203;287x Seq. Ouda (CCD-V)
ANDRX 981020.89 11.5 GRL C203;100x Outburst
ANDRX 981023.80 12.6 GRL C203;100x Active, fading
ANDZ 981023.84 11.0 GRL C203;100x Seq. Skiff (PEP-V)
AQRR 981020.90 10.0 GRL C203;100x
AURRW 981023.91 10.9 GRL C203;100x
BOOR 981020.76 <10.5 HSY L60;36x Negative
BOOV 981020.78 9.6 HSY L60;36x 98-2 (2)
CAMX 981020.83 10.3 HSY L60;36x 101-2
CAMZ 981023.83 12.1 GRL C203;100x Active
CASR 981011.85 10.1 HSY L60;36x 99(2)v(3)105
CAST 981011.85 9.1 HSY L60;36x 90-1
CASV 981011.86 <10.5 HSY L60;36x Negative
CASV723 981023.860 12.7 GRL C203;100x Seq. Shugarov+ (V)
CRBR 981011.81 8.3 HSY L60;36x V=83 (2), SUAA.VSS
CRBR 981023.76 8.4 GRL C203;100x Seq. BAA.VSS
CRBS 981011.83 7.3 HSY L60;36x 70(2)v(8)85 (2), SUAA
CRBS 981023.78 7.7 GRL C203;100x
CRBT 981011.82 10.3 HSY L60;36x 102-1 (2)
CRBT 981023.76 10.3 GRL C203;100x
CYGBF 981020.90 12.1 GRL C203;100x Seq. Skiff (PEP-V)
CYGBF 981023.82 12.1 GRL C203;100x Seq. Skiff (PEP-V)
CYGCH 981020.81 8.3 HSY L60;36x 85+2
CYGCH 981023.83 8.0 GRL C203;100x
CYGCI 981023.82 11.4 GRL C203;100x
CYGEM 981023.78 13.1 GRL C203;287x Active
CYGSS 981020.90 12.1 GRL C203;100x
CYGSS 981023.78 12.0 GRL C203;100x
CYGV1016 981023.83 10.5 GRL C203;100x
CYGV482 981023.83 11.0 GRL C203;100x
CYGchi 981011.83 5.9 HSY B7x50 V=59
CYGchi 981020.82 5.8 HSY B7x50 59+1
CYGchi 981023.78 5.8 GRL L70;24x
DRAAG 981023.83 9.9 GRL C203;100x Seq. Tycho (V-mag)
DRAR 981011.84 <10.9 HSY L60;36x Negative
DRAR 981020.80 <11.3 HSY L60;72x Negative
HERAH 981023.78 <13.2 GRL C203;287x
OPHRS 981023.76 11.5 GRL C203;100x Seq. BAA.VSS
ORIFU 981023.91 9.6 GRL C203;100x
ORIU 981023.91 7.4 GRL C203;100x
PEGAG 981023.84 9.1 GRL C203;100x Seq. Tycho (V-mag)
PEGIP 981020.90 <13.9 GRL C203;287x Seq. BAA.VSS (V-mag)
PEGIP 981023.7622 12.7 GRL C203;287x C-2,D=V,I+1
PEGIP 981023.7781 12.7 GRL C203;287x C-2,D=V,I+1
PEGIP 981023.7854 12.7 GRL C203;287x C-1.5,D+0.5,I+1
PEGIP 981023.7944 12.6 GRL C203;287x C-1,D+1,I+2
PEGIP 981023.8024 12.6 GRL C203;287x C=V,D+2,I+2
PEGIP 981023.8111 12.7 GRL C203;287x C-1,D+1,I+1
PEGIP 981023.8167 12.7 GRL C203;287x C-2,D=V,I+1
PEGIP 981023.8229 12.8 GRL C203;287x C-2,D=V,I=V
PEGIP 981023.8302 12.8 GRL C203;287x C-2,D=V,I=V
PEGIP 981023.8389 12.7 GRL C203;287x C-1,D+1,I+1
PEGIP 981023.8444 12.8 GRL C203;287x C-2,D=V,I=V
PEGIP 981023.8507 12.8 GRL C203;287x C-2,D=V,I=V,G+10
PEGIP 981023.8569 12.7 GRL C203;287x C-1,D+1,I=V
PEGIP 981023.8618 12.7 GRL C203;287x C-1.5,D=V,I+0.5
PEGIP 981023.8736 13.0 GRL C203;287x D-3,I-2,G+8
PEGIP 981023.8771 13.4 GRL C203;287x D-6,I-5,G+4
PEGIP 981023.8799 13.7 GRL C203;287x D-9,G+1
PEGIP 981023.8826 14.0 GRL C203;287x F-3,G-1
PEGIP 981023.8854 14.0 GRL C203;287x F-3,G-2
PEGIP 981023.8889 13.9 GRL C203;287x F-2,G=V
PEGIP 981023.8924 13.5 GRL C203;287x D-7,F+2,G+3
PEGIP 981023.8962 13.1 GRL C203;287x C-5,D-3,G+7
PEGIP 981023.8997 12.8 GRL C203;287x C-2.5,D=V,I-0.5
PEGIP 981023.9038 12.8 GRL C203;287x C-2,D=V,I=V
PEGIP 981023.9132 12.8 GRL C203;287x C-2,D=V,I=V
PEGRU 981020.89 11.6 GRL C203;287x Outburst
PEGRU 981023.78 11.2 GRL C203;287x Outburst
PERGK 981023.85 13.2 GRL C203;100x
PERKT 981020.89 12.8 GRL C203;287x Outburst, seq. Ouda
PERKT 981023.80 <14.0 GRL C203;287x Seq. Ouda (CCD-V)
PERTX 981020.85 10.9 HSY L60;36x V=109 (2), SUAA.VSS
PERTX 981023.84 11.2 GRL C203;100x
PERX 981020.84 6.1 HSY B7x50 622+1, HIP (V-mag)
PSCTY 981020.89 <14.0 GRL C203;287x Seq. Ouda (CCD-V)
PSCTY 981023.80 <14.0 GRL C203;287x Seq. Ouda (CCD-V)
SCTR 981011.80 6.0 HSY B7x50 61+1 (2)
SCTR 981023.78 5.5 GRL L70;24x
SGEFG 981023.81 <13.5 GRL C203;287x Seq. Ouda (CCD-V)
SGEHM 981023.83 11.3 GRL C203;100x
SGEV 981023.81 10.9 GRL C203;100x
TAUBP 981023.91 12.2 GRL C203;100x
TAUCQ 981023.91 10.3 GRL C203;100x Seq. Skiff (PEP-V)
TAURR 981023.91 10.8 GRL C203;100x Bright
TAURY 981023.91 10.5 GRL C203;100x
TAUSU 981023.91 11.2 GRL C203;100x Seq. Ouda (CCD-V)
TAUT 981023.91 10.2 GRL C203;100x
TRIR 981011.84 5.9 HSY B7x50 58(1)v(2)62
TRIR 981020.84 6.1 HSY B7x50 62+1
UMAS 981018.80 9.5 HSY L60;36x 92-3 (2)
UMAS 981020.79 9.3 HSY L60;36x 92(1)v(4)97 (2)
UMAT 981020.78 <10.7 HSY L60;36x Negative
UMIT 981020.81 <10.9 HSY L60;36x Negative
UMIV 981020.81 8.7 HSY L60;36x 89+2
VULPU 981023.82 11.6 GRL C203;100x Seq. BAA.VSS
VULWW 981023.83 10.7 GRL C203;100x Seq. AFOEV
Notes concerning the outburst of IP Pegasi:
The observations (all of class 2) are Pogson step estimates and
listed under the remarks column. They were timed to the nearest 0.5
minute (i.e. accuracy +/- 15 seconds = 0.0002 days) and sampled
every 4-5 minutes during eclipse. Comparison stars (idenfications
and V-magnitudes from BAA.VSS chart 186.02c): C=12.55, D=12.72,
I=12.81, F=13.67, G=13.89. It should also be noted that unfiltered
CCD-observations have been made from Haagaar observatory in
August-September but they have not yet been reduced.
Observers:
GRL = Bjorn H. Granslo (Fjellhamar, Norway). Instruments: 20.3-cm SCT
(C203), 70-mm refractor (L70). AAVSO sequences unless noted.
Conditions: Clear sky on Oct 20-21; clear and transparent, but
windy on Oct 23-24.
HSY = Stein Hoeydalsvik (Tromsoe, Norway). Instruments: 60-mm
refractor (L60), 7x50 binoculars (B7x50). Notes: Observations of
class 2 on 1998 Oct 11 due to low altitude. Class 2 observations on
Oct 18 and Oct 20 due to strong auroral light. AAVSO sequences
unless otherwise noted.
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