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Date: Mon, 21 Jun 1993 13:22:46 GMT
From: Zdenek Urban <urban@asu.savba.cs>
Subject: Nova Cygni 1992 = V1974 Cyg UBV measurements
Dear Nova People:
After the completion of our Nova Cygni 1992 = V1974 Cyg paper soon to appear
in Astron. and Astrophys. ( D. Chochol, L. Hric, Z. Urban, R. Komzik,
J. Grygar, and J. Papousek, 1993, in press ) containing the photometric
and spectroscopic data covering the interval 1992 Feb-Nov, we have continued
the UBV monitoring of this nova. Please find our mean UBV values obtained
in 17 nights between 1992 Nov and 1993 Jun listed in a table below. I hope
these data might be of some interest to those of you who are working on
V1974 Cyg. The data originated as a part of our joint programme ( see names
above ) devoted to the study of this and other novae.
Date JD -2400000 U B V n Obs.
=========================================================================
24/25 Nov 92 48951.328 8.308 10.091 10.141 12 SP
15/16 Dec 92 48972.268 - 10.464 - 68 SP
23/24 Dec 92 48980.204 8.510 10.562 10.459 12 SP
5/6 Jan 93 48993.226 8.825 10.756 10.758 16 SL
17/18 Jan 93 49005.226 8.967 10.883 11.055 16 SP
4/5 Feb 93 49023.685 - 11.112 11.236 16 SP
13/14 Feb 93 49032.640 9.150 11.250 11.413 9 SP
15/16 Feb 93 49034.670 9.140 11.213 11.297 14 SP
3/4 Mar 93 49050.626 9.228 11.614 11.461 12 SP
13/14 Mar 93 49060.587 9.430 11.642 11.667 16 SP
1/2 Apr 93 49079.413 9.755 12.018 12.183 18 SP
10/11 Apr 93 49088.422 9.870 11.846 11.763 18 SP
20/21 Apr 93 49098.533 9.863 12.067 12.075 58 SP
21/22 Apr 93 49099.533 9.935 12.040 12.055 20 SP
26/27 Apr 93 49104.376 10.208 12.173 12.202 18 SP
9/10 May 93 49117.529 10.259 12.374 12.152 20 SL
10/11 Jun 93 49149.373 10.899 12.912 12.665 8 SP
=========================================================================
SP and SL denote Skalnate Pleso and Stara Lesna Observatories of the
Astronomical Institute of the Slovak Academy of Sciences, respectively.
Both observatories are equipped by 60 cm reflectors with the standard UBV
measuring devices. The mean error is less than 0.01 mag in all but a few
cases.
With the best wishes.
Sincerely,
Zdenek Urban
--
Zdenek URBAN
Astronomical Institute
of the Slovak Academy of Sciences
059 60 Tatranska Lomnica
SLOVAK REPUBLIC
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