From: LARRY KLAES (ljk4_at_msn.com)
Date: Sat Apr 02 2005 - 10:58:25 PST
----- Original Message -----
From: aavso_at_aavso.org<mailto:aavso_at_aavso.org>
To: aavso_at_aavso.org<mailto:aavso_at_aavso.org>
Sent: Wednesday, March 30, 2005 4:53 PM
Subject: AAVSO Alert Notice 316
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 316 (March 30, 2005)
SUBJECTS:
1. NOVA IN SAGITTARIUS: 1810-25 V5115 SGR (= N SGR 05)
2. ANNOUNCEMENT ABOUT AAVSO ALERT NOTICE 315
1. 1810-25 V5115 SGR (N SGR 05)
Event: Nova
Discovered Independently By (reported by S. Nakano, Sumoto, Japan, IAU
Circular 8500):
- Hideo Nishimura, Kakegawa, Shizuoka-ken, Japan
- Yukio Sakurai, Mito, Ibakaki-ken, Japan
Discovery Magnitude (IAU Circular 8500):
- 8.7 (2 exposures, Kodak T-Max film, Pentax 6x7 camera, 200-mm f/4.0
lens)
(Nishimura)
- 9.1 CCD (Fine Pix S2 digital camera, Nikon 180-mm f/2.8 lens) (Sakurai)
Discovery Date (IAU Circular 8500):
- March 28.779 UT (Nishimura)
- March 28.796 UT (Sakurai)
Position: R.A. (2000): 18h 16m 59.04s Decl. (2000): -25o 56' 38.8"
measured by S. Nakano from Sakurai's .jpg image (IAU Circular 8500)
Spectra: L. Kiss, University of Sydney, and A. Derekas, University of New
South Wales, obtained spectra with the Australian National University
2.3-m telescope (+ Double-Beam Spectrograph) at Siding Spring Observatory
that show the object to be a nova. K. Ayani and Y. Kawabata, Bisei
Astronomical Observatory, also obtained low-dispersion spectra that show
the object to be a nova.
AAVSO Chart(s): No AAVSO chart has been made yet for this object. At
Report Object to the AAVSO as: 1810-25 V5115 SGR (name assigned by
Observations Reported to the AAVSO: Marx. 29.737 UT, 8.2 CCD, K. Kadota,
Notes (from IAU Circular 8500):
b. H. Yamaoka, Kyushu University, Japan, notes nothing is visible at this
c. Yamaoka notes a bright infrared source in the 2MASS catalogue has the
Congratulations to Hideo Nishimura and Yukio Sakurai on their independent
2. ANNOUNCEMENT ABOUT AAVSO ALERT NOTICE 315
Due to a technical error, you likely did not receive an electronic copy of
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
: Sat Apr 02 2005 - 11:02:59 PST
present, please use the chart made by Sebastian Otero
http://ar.geocities.com/varsao/Carta_Nova_Sgr_2005.htm
N. Samus and E. Kazarovets, Institute of Astronomy, Russian Academy of
Sciences, IAU Circular 8502)
Ageo, Japan (IAU Circular 8501); 29.755, 7.8 CCD, S. Wakuda, Yuto-cho,
Hamana-gun, Shizuoka-ken, Japan (via S. Nakano, IAU Circular 8501);
30.1563, 7.9, A. Amorim, Florianopolis, Brazil; 30.273, 7.7, R. Shida, Sao
Paulo, Brazil.
a. Nothing was visible on Sakurai's CCD images taken March 19, 20, 25
(down to magnitude 11.8).
location on ASAS-3 image taken March 27.464 UT (down to magnitude ~14).
position end figures 58.67s, 39.0".
discoveries!
AAVSO Alert Notice 315. We will re-send this Alert Notice for your files.
We apologize for the inconvenience.
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).
Senior Technical Assistant