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Date: Sun, 30 May 1993 16:07:03 +0300
From: granslo@argo.uio.no
Subject: Nova Aql 1993 - NAS.VSS Report No. 4
Norwegian Ast([|omical Society - Variable Star Section
OBSERVATIONS OF NOVA AQUILAE 1993 - REPORT NO. 004 (1993 May 30)
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YYYY MM DD.DDD OBSERVATION MAG CL INSTRUM. OBSERVER
1993 05 17.95 Bb-2;At+5 7.9 M316,62x Midtskogen, O.
1993 05 17.969 Bb-6;At+5 8.1 1 C203,80x Granslo, B. H.
1993 05 17.991 Ab-8;Bg-1;Ag+2;At+4 7.9 1 C203,80x Dahle, H.
1993 05 18.004 Bb-5;At+5 8.1 1 C203,80x Granslo, B. H.
1993 05 18.031 Bb-6;At+5;Db+8 8.1 1 C203,80x Granslo, B. H.
1993 05 18.990 Bb-5;Ag-1;At+6;Db+8 8.0 1 C203,80x Granslo, B. H.
1993 05 19.019 Ab-8;Bb-2;At+6 7.8 1 C203,80x Dahle, H.
1993 05 20.006 Ab-8;Bb-2;Ag=V;At+8 7.8 1 C203,80x Granslo, B. H.
1993 05 20.949 Bb-2;At+5 7.9 2 C203,80x Dahle, H.
1993 05 21.974 Ab-8;Bb-2;At+7 7.8 1 C203,80x Dahle, H.
1993 05 22.959 Ab-6;Bb=V;Cb+6 7.6 1 C203,80x Granslo, B. H.
1993 05 22.983 Ab-5;Bb=V;At+7 7.6 1 C203,80x Dahle, H.
1993 05 23.926 Ab-8;Bb-2;Ag=V;Cb+4;At+8 7.8 1 C203,80x Granslo, B. H.
1993 05 23.958 Ab-6;Bb-2;At+6 7.8 1 C203,80x Dahle, H.
1993 05 25.969 Bb-3;Ag=V;Cb+4;At+7 7.9 1 C203,80x Granslo, B. H.
1993 05 26.948 Bb-4;At+5 8.0 2 C203,80x Dahle, H.
1993 05 27.002 Bb-5;Ag-2;Cb+2;At+6 8.0 1 C203,80x Granslo, B. H.
1993 05 27.949 Bb-4;Ag-1;Cb+3;At+6 8.0 1 C203,80x *Granslo, B. H.
1993 05 27.963 Bb-6;At+4 8.2 2 C203,80x *Dahle, H.
1993 05 28.965 Bb-5;At+4 8.1 1 C203,80x *Dahle, H.
1993 05 29.010 Bb-4;Ag-1;Cb+3;At+6 8.0 2 C203,80x *Granslo, B. H.
1993 05 29.971 Bb-6;At+4 8.2 2 C203,80x *Granslo, B. H.
Time system is Universal Time. Magnitudes were calculated from Pogson's step
method. CL = class: estimated accuracy of observation; 1 = good (+/- 0.1
mag.), 2 = fair (+/- 0.2 mag.). Instrument (aperture in mm): M = reflector,
C = Schmidt-Cassegrain.
New or revised observations since Report No. 3 (1993 May 27) are marked with
an asterisk (*).
Comparison stars:
Ident R.A. (2000.0) Decl. V Spec. SAO Seq.
h m s o ' "
Ab 19 12 03.3 + 2 37 22 6.93 B9 124376 HIC
Bb 19 09 01.8 + 1 21 09 7.56 F5 124317 HIC
Ag 19 07 46.3 + 1 27 06 7.8 A2 124300 HIC
Bg 19 10 09.8 + 2 21 09 7.86 A0 124339 HIC
Cb 19 17 14.8 + 1 03 34 8.27 B1 124467 HIC
At 19 12 22.6 + 1 22 07 8.60 A0 124380 TA
Db 19 09 42.1 + 1 14 05 8.89 G5 124332 HIC
Sequences: HIC = The Hipparcos Input Catalogue; TA = The Astronomer
Electronic Circular No. 742 (magnitude from Guide Star Catalog). Stars
Ab, Bb, Cb and Db are from a list supplied by H. Bengtsson.
The nova is located at RA = 19h 13m 06.7s, Decl. = +1d 34' 23" (2000.0).
Observers: Haakon Dahle (Oslo, Norway); Bjoern Haakon Granslo (Fjellhamar,
Norway); Oernulf Midtskogen (Tranby, Norway).
Regards,
Bjorn H. Granslo
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