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Alert Notice 194: 2027+52 V1974 Cygni = Nova Cygni 1992 AND Outburst of 2209+12 RU Pegasi AND 1824-17 Nova Sagittarii 1994#2 [V4362 Sgr]

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THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
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AAVSO ALERT NOTICE 194 (October 4,1994)

2027+52 V1974 CYGNI = NOVA CYGNI 1992

We have been informed by Brian Skiff at Lowell Observatory, Flagstaff, AZ, and Charles Scovil at
Stamford Observatory, CT, that the comparison star of photoelectric (V) magnitude 14.5 measured by Brian
Skiff (see AAVSO Alert Notice 193) was misidentified on the 'f' chart issued with AAVSO Alert Notice 193.
We regret this error. Accompanying is a corrected chart for V1974 Cyg. The photovisual magnitudes of
12.5, 14.2, and 14.5 have been deleted from the chart to make the sequence homogeneous, as it now consists entirely of photoelectric V magnitudes.

Observers are urged to throw away the earlier version of this chart sent with AAVSO Alert Notice 193 and to
use only the accompanying, revised chart. If estimates have been made using photovisual magnitudes,
particularly the 14.2 and 14.5, please revise your magnitude estimates using the accompanying chart and
resubmit them to headquaters, indicating that they are revised.

Chart links are obsolete; 01/2014 create charts using VSP at http://www.aavso.org/vsp

OUTBURST OF 2209+12 RU PEGASI

The outburst of RU Peg continues, as indicated by the observations below telephoned in by AAVSO
observers. This outburst is a "normal" one, not a faint one as were the last two (see AAVSO Alert Notice 193):

Sep 30.001 UT, 11.6, J. Bortle, Stormville, NY; 30.256, 11.2, J. McKenna, Upper Montclair, NJ; 30.282, 11.2,
C. Scovil, Stamford, CT; 30.317,11.3, T. Burrows, Novato, CA; 30.345,11.7, W. Albrecht, Pahala, HI; 30.777,
11.3, J. Pietz, Erftstadts, Germany; Oct 1.129, 11.4, R. Royer, Lakewood, CA; 2.113, 10.7, A. Dill, Wichita,
KS; 2.157, 10.8, Burrows; 2.163, 11.0, Burrows; 2.809, 10.7, Pietz; 3.037, 11.1, Bortle; 3.037, 10.9, J. Griese,
Rocky Hill, CT; 3.150, 10.6, Burrows; 3.177, 10.7, W. Dillon, Missouri City, TX; 3.280, 10.4, Scovil; 3.521,

Albrecht; 4.023, 11.1, Bortle; 4.028, 10.8, P. Dombrowski, Glastonbury, CT; 4.038, 10.6, R. Stewart,
Rochelle Park, NJ; 4.083, 10.5, S. Tracy, N. Granby, CT; 4.133, T. Benner, Perkasie, PA; 4.153, 10.6,
Burrows.

1824-17 NOVA SAGITTARII 1994#2 [V4362 SGR]

N Sgr 94#2, discovered on May 20 at photographic magnitude 10.8, reached about magnitude 10.2 and
stayed at this brightness until mid-June, when it showed a minor brightening, reaching magnitude 8.5 at
maximum. By June 21, it had faded to 9.7, and continued to fade until it reached magnitude 10.5 by early
July. Since then it has had several minor brightenings, reaching between 8.5 and 9.5 at maximum, as well as
slowly continuing to fade at minimum. It is going through another minor brightening, as indicated by the
following observations:

Sep 24.063 UT, 11.3,W. Dillon, Missouri City, TX; 24-101,11.2, J. Nordby, Moorhead, MN; 24.87, 11.4, M.
Verdenet, Bourbon-Lancy, France; 25.097, 11.2, Dillon; 26.140, 11.8, E. Halbach, Estes Park, CO; 26.160,
11.4, Dillon; 26.167, 11.2, R. Royer, Lakewood, CA; 27.120, 11.2, Dillon; 28.163, 11.1, Dillon; 29.066, 10.3,
Nordby; 29.126,10.4, Dillon; Oct 1.1354;10.0, Royer; 4.246,10.9, Dillon.

Please continue to monitor this interesting nova closely as much as possible.

The answering machine at Headquarters, with our charge free number (1-800-642-3883), is on nights and
weekends for your convenience.

Thank you very much for your astronomical efforts and your valuable contributions.

Good observing,

Janet A. Mattei
Director

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