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Alert Notice 188: Outburst of old nova LQ Sgr AND Nova Oph 1994 AND Recent outburst of SS Cyg AND Recent outburst of symbiotic star AG Dra

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
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AAVSO ALERT NOTICE 188 (July 14, 1994)

OUTBURST OF OLD NOVA 1822-27 LQ SAGITTARII

We have been informed through the Central Bureau for Astronomical Telegrams (IAU
Circular 6018
) that P. Zhao and J. E. McClintock, Smithsonian Astrophysical Observatory,
and A. U. Landolt, Louisiana State University, have reported N Sgr 1897 (LQ Sgr) in
outburst, at 5 magnitudes brighter in B than it was in quiescence. They report that on July
5.23 UT LQ Sgr was 14.3 V; on 6.24, 14.38 V; and on 8.20, 14.40 V, and that it may be a
symbiotic nova like RR Tel. LQ Sgr, which is a poorly-known nova, reached photographic
magnitude 10 in 1897.

Enclosed are two charts of the field from the Royal Astronomical Society of New Zealand,
Variable Star Section. Please observe the new outburst of this old nova if possible, and
report your observations to AAVSO Headquarters.

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

1729-19 NOVA OPHIUCHI 1994

This nova, discovered June 2, has been slowly fading from visual magnitude 8.6 on June 4,
as indicated by the observations we have received from observers around the world. On
July 13.19 UT C. Scovil reported it at 11.7. Contributing observers include: S. Baroni,
Milano, Italy; J. Bortle, Stormville, NY; P. Collins, Scottsdale, AZ; A. Dill, Wichita, KS; W.
Hasubick, Buchloe, Germany; P. Hornby, Laguna Beach, CA; L. Kiss, Szeged, Hungary; S.
O'Connor, Montreal North, Canada; D. Overbeek, Edenvale, South Africa; R. Royer,
Lakewood, CA; P. Schmeer, Bischmisheim, Germany; C. Scovil, Stamford, CT; R. Szabo,
Ajka, Hungary; L. Szentasko, Veresgyhaz, Hungary; T. Vanmunster, Landen, Belgium; D.
York, Abiquiu, NM.

Enclosed are AAVSO b and d charts prepared by C. Scovil, Stamford Observatory, with
CCD V magnitudes around the nova measured by R. Zissell, Mt. Holyoke College. Please
continue to monitor this nova and report your observations to Headquarters.

Please check observations you have already made of N Oph 94 to see if any revisions are
necessary because of the new sequence. If there are revisions, please make and submit
them to Headquarters, indicating that they are revised observations and noting which
comparison stars you used.

RECENT OUTBURST OF 2138+43 SS CYGNI

Thanks to the enthusiastic response from our observers around the world, the recent long
outburst of SS Cyg that began on June 22 has been very well monitored. The reported
observations have been transmitted to astronomers who have observed SS Cyg with the
IUE and EUVE satellites. Excellent sets of data have been obtained with both these
satellites, and astronomers at Lawrence Livermore National Laboratory and NASA
Goddard Space Flight Center extend their sincere thanks for the very strong support that
was provided by our observers during this outburst. At this time I extend sincere thanks to
the following dedicated observers who have kept us informed of the brightness of SS Cyg
throughout this outburst and so have truly helped m the success of these observing runs:

M. Adams, Fort Davis, TX; M. Biesmans, Essen, Belgium; E. Broens, Mol, Belgium; J.
Bortle, Stormville, NY; T. Burrows, Novato, CA; R. Campbell, Clearwater, FL; P. Collins,
Scottsdale, AZ; A. Dill, Wichita, KS; W. Dillon, Missouri City, TX; A. Diepvens, Balen,
Belgium; E. Halbach, Estes Park, CO; L. Kiss, Szeged, Hungary; J. McKenna, Upper
Montclair, NJ; J. Nordby, Moorhead, MN; G. Poyner, Birmingham, England; P. Robbins,
Kansas City, KS; R. Royer, Lakewood, CA; D. Van Hessche, Appelterre, Belgium; T.
Vanmunster, Landen, Belgium; D. York, Abiquiu, NM.

RECENT OUTBURST OF SYMBIOTIC STAR 1601+67 AG DRACONIS

The symbiotic star AG Dra, which has been quiescence since its last outburst in 1985-1986,
is undergoing an outburst, as reported by the following observers:

M. Adams, Fort Davis, TX; J. Bortle, Stormville, NY; T. Burrows, Novato, CA; A.
Diepvens, Balen, Belgium; L. Kiss, Szeged, Hungary; S. O'Connor, Montreal North,
Canada; G. Poyner, Birmingham, England; R. Royer, Lakewood, CA; P. Schmeer,
Bischmisheim, Germany; R. Stewart, Rochelle Park, NJ; R. Szabo, Ajka, Hungary; L.
Szentasko, Veresgyhaz, Hungary; D. York, Abiquiu, NM.

AG Dra brightened from visual magnitude 9.3 to 8.1 from June 1 to June 10, and continues
to be bright at magnitude 8.2.

Please monitor this outburst and report your observations to AAVSO Headquarters.

The answering machine at AAVSO Headquarters is on nights and weekends for your
convenience. US observers may use the charge-free number (800-642-3883).

Sincere thanks for your dedicated efforts and valuable astronomical contributions.

Good observing!

Janet A. Mattei
Director

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