From: LARRY KLAES (ljk4_at_msn.com)
Date: Thu Aug 05 2004 - 17:30:53 PDT
----- Original Message -----
From: aavso_at_aavso.org<mailto:aavso_at_aavso.org>
To: aavso_at_aavso.org<mailto:aavso_at_aavso.org>
Sent: Thursday, August 05, 2004 6:29 PM
Subject: AAVSO Alert Notice 310
THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
25 Birch Street, Cambridge, MA 02138 USA
INTERNET: aavso_at_aavso.org<mailto:aavso_at_aavso.org>
Tel. 617-354-0484 Fax 617-354-0665
AAVSO ALERT NOTICE 310 (August 5, 2004)
SUBJECTS:
1. PROBABLE NOVA IN SCORPIUS: 1722-31 N SCO 04#2
2. REMINDER TO MONITOR 1931-46 QS TEL TO TRIGGER CHANDRA OBSERVATIONS
3. REMINDER TO MONITOR 0409-71 VW HYI IN SUPPORT OF FUSE OBSERVATIONS
4. OUTBURST OF 2328+48 Z ANDROMEDAE CONTINUES
1. PROBABLE NOVA IN SCORPIUS - 1722-31 N SCO 04#2
Event: Probable Nova
Announced in: IAU Circular 8380, 5 August 2004; additional information in
IAU Circular 8381, 5 August 2004
Discovered by: Akira Takao, Kitakyushu, Japan (reported via H. Yamaoka,
Kyushu University, Japan, IAUC 8380)
Discovery Magnitude: magnitude 7.4 on unfiltered CCD images taken with
120-mm telephoto lens (IAUC 8380)
Discovery Date: August 3.583 UT (IAUC 8380)
Position (equinox 2000.0): R.A. = 17h 29m 18.81s, Decl. = -31o 46' 01.5"
measured by K. Itagaki, Japan, on CCD image taken August 5.475 UT and
reported by H. Yamaoka, Kyushu University (IAUC 8381).
Magnitude History (IAUC 8380):
- Takao: nothing visible at this location on images taken July 18.637 UT
(limiting magnitude 11.9), July 30.569 (limiting mag 10.8).
- ASAS-3: nothing visible at this location on previous images through
July 26.271 UT.
- William Liller, Vina del Mar, Chile: fainter than 11.0 on Tech Pan film
(with orange filter) taken July 19.40 UT (IAU Circular 8381).
AAVSO Chart(s): 'd' scale chart soon to be available at
Report Object to the AAVSO as: 1722-31 N SCO 04#2
Additional Observations Reported to the AAVSO: Aug 2.0709 UT, 9.91 CCDV
Spectra: Low-resolution spectrum taken August 5.49 UT by M. Fujii, Bisei,
Notes:
Congratulations to Akira Takao on his discovery!
2. REMINDER TO MONITOR 1931-46 QS TEL TO TRIGGER CHANDRA OBSERVATIONS
As was announced in CCD Views #316
QS Tel may be brightening, according to recent CCD and visual observations
More observations are needed to confirm this activity, in order to decide
Despite being somewhat faint in the optical, QS Tel is the third brightest
Hardly anything was known about the optical behavior of QS Tel when Dr.
For more information on QS Tel and this observing campaign please see CCD
3. REMINDER TO MONITOR 0409-71 VW HYI IN SUPPORT OF FUSE OBSERVATIONS
Throughout the month of August, target-of-opportunity observations of the
Close optical coverage - one observation each night if possible, more
4. OUTBURST OF 2328+48 Z ANDROMEDAE CONTINUES
The symbiotic star prototype 2328+48 Z And continues to brighten (see
Please continue to follow Z And through its outburst and report your
SUBMIT OBSERVATIONS TO THE AAVSO
We encourage observers to submit observations via our web site (online
Many thanks for your valuable astronomical contributions and your efforts.
Good observing!
Elizabeth O. Waagen
This archive was generated by hypermail 2.1.6
: Thu Aug 05 2004 - 18:06:30 PDT
http://www.aavso.org/cgi-bin/searchcharts3.pl?name=n%20sco%2004%232
ASAS, A. Price, Watertown, MA; 5.475, 8.0 CCD (poor sky conditions), K.
Itagaki, Japan (IAUC 8381); 5.790, 8.3 CR (+/-~0.1), B. Monard, Pretoria,
South Africa; 5.794, 9.8 CV (+/-~0.1), Monard; 5.797, 11.1 CCDB (+/-~0.1),
Monard.
Okayama, Japan, suggests that the object is a classical nova (reported by
H. Yamaoka in IAU Circular 8381).
1. No known x-ray or bright infrared source at this location (IAUC
8380).
2. Itagaki's position closely matches that of a very red star with
USNO-A2.0 position end figures 18.818s, 01.68" (blue mag 19.7, red mag
17.4) and with 2MASS position end figures 18.82s, 01.5" (J=14.4) (IAUC
8381).
3. For more information, see IAU Circulars 8380 and 8381, ed. D.W.E.
Green.
(http://www.aavso.org/publications/ccdviews/316.shtml
Notice 302 (http://www.aavso.org/publications/alerts/alert302.shtml
Christopher Mauche, Lawrence Livermore National Laboratory, has requested
our assistance in monitoring QS Tel for triggering of observations with
the Low Energy Transmission Grating on the Chandra satellite.
received from Berto Monard, Pretoria, South Africa: July 08.0330 UT, 16.5
CR; 11.7550, 16.4; 28.8380, 15.6 CR; 30.9930, 15.7 CR. Observations in the
AAVSO International Database show QS Tel as faint as 17.94 CCDV in March
2004 and brightening to 15.87 CCDV on April 27 before fading to ~17.2 and
gradually brightening to 16.89 CCDV on June 11. Berto's observations show
this brightening appears to be continuing.
whether and when to trigger the Chandra observations. According to Dr.
Mauche, snapshot photometry (once per night per observer) is needed most
critically, although it will be helpful to obtain occasional (~once per
week) timeseries photometry for one or two times the length of the
source's 2 hr 20 min orbital period if QS Tel reaches V=15.5 or brighter.
Ongoing _positive_ visual observations are also needed to continue to
determine the brightness of QS Tel, but QS Tel will be too faint
(~15.2-17.4V) for most visual observers.
member of the enigmatic AM Her class in soft X-rays.
Mauche's campaign was announced in September 2003. We thank our observers
who have been monitoring QS Tel since then to establish its light curve,
Bernard Heathcote (HBD), Peter Nelson (NLX), Berto Monard (MLF), Thomas
Richards (RIX), David Higgins (HDJ), and Bruce Gary (GBL).
Views #316 and AAVSO Alert Notice 302.
cataclysmic variable VW Hyi are being made with the FUSE satellite on
behalf of Dr. Knox Long, Space Telescope Science Institute, and
colleagues. This observing campaign has been described most recently in
AAVSO Alert Notice 309
(http://www.aavso.org/publications/alerts/alert309.shtml
frequent observations when the star is rising to maximum - is essential to
correlate the FUSE observations. For observers with far-southern horizons,
please continue to observe VW Hyi every clear night through mid-September
and report your observations to AAVSO Headquarters. Also, please notify
Headquarters immediately when you see VW Hyi going into outburst. Thanks
to our southern-hemisphere observers struggling through miserable weather
to make these vital observations!
AAVSO Alert Notice 309
http://www.aavso.org/publications/alerts/alert309.shtml
following observations recently submitted to the AAVSO: July 27.0597 UT,
9.6, H. Hautecler, Boutersem, Belgium; 27.8444, 9.4, W. Kriebel,
Osterwaal, Germany; 27.8785, 9.2, J. Van Der Looy, Balen, Belgium;
27.8903, 9.3, D. Naillon, Lihons, France; 27.9063, 9.5, J. Ripero, Madrid,
Spain; 27.9063, 9.5, Ripero; 27.9465, 9.3, D. Augart, Weisenheim am Berg,
Germany; 28.8563, 9.5, Kriebel; 28.8681, 9.3, Van Der Looy; 28.9, 9.6, F.
Vohla, Altenburg, Germany; 28.9194, 9.4, E. Muyllaert, Oostende, Belgium;
28.9243, 9.7, A. Diepvens, Olmen-Balen, Belgium; 28.9604, 9.3, Augart;
28.9861, 9.5, Hautecler; 29.8625, 9.5, Kriebel; 29.8861, 9.4, Van Der
Looy; 29.9, 9.6, Vohla; 29.9076, 9.7, Diepvens; 30.8903, 9.5, Van Der
Looy; 30.9681, 9.4, Muyllaert; 30.979, 9.4, G. Poyner, Birmingham,
England; 30.9861, 9.5, S. Swierczynski, Dobczyce, Poland; 31.8778, 9.5,
Naillon; 31.2403, 9.5, M. Komorous, London, Ontario, Canada; August
01.9160, 9.3, Naillon; 01.9174, 9.4, Muyllaert; 02.8278, 9.4, A. Sonka,
Bucharest, Romania; 02.9458, 9.4, Muyllaert; 03.8313, 9.4, Kriebel;
04.2723, 9.18 CCD, M. Koppelman, Golden Valley, MN; 04.3299, 9.3, M.
Simonsen, Imlay City, MI.
observations to AAVSO Headquarters.
data submission tool WebObs), or by email in AAVSO format to
observations_at_aavso.org<mailto:observations_at_aavso.org>. If you do not have AAVSO Observer Initials, please
contact Headquarters so we may assign them to you. The answering machine
at AAVSO Headquarters is on nights and weekends; use our charge-free
number (888-802-STAR = 888-802-7827) to report your observations, or
report them via fax (617-354-0665).
Interim Director