Skip to main content

Web Publications


AAVSO: AAVSO Alert Notice 323 AAVSO HOME > publications > alerts



            THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
                  25 Birch Street, Cambridge, MA 02138 USA
                        aavso@aavso.org
                  Tel. 617-354-0484       Fax 617-354-0665

AAVSO ALERT NOTICE 323 (July 26, 2005)

SUBJECT: 1737-34 NOVA SCORPII 2005

Object: 1737-34 NOVA SCORPII 2005

Event: Nova in Scorpius

Discovered Independently By:
- ASAS-3 survey (reported by Grzegorz Pojmanski, Warsaw University Astronomical Observatory)
- Hideo Nishimura, Kakegawa, Shizuoka-ken, Japan (reported by S. Nakano, Sumoto, Japan)

Discovery Magnitude:
- 9.11 CCDV (ASAS-3, 180-mm-focal-length (65-mm-aperture) telephoto lens)
- 8.7 photographic (Nishimura, two 30-s Kodak T-Max films; Pentax 6x7 camera (+ 200-mm f/4.0 lens))

Discovery Date:
- July 25.284 UT (ASAS-3)
- July 26.565 UT (Nishimura)

Position: Reported by S. Nakano and measured by N. Hashimoto and T. Urata, Bisei Spaceguard Center, on unfiltered CCD frames taken ~July 26.596 UT using the 0.50-m f/2.0 reflector:
R.A. = 17h 44m 21.59s (2000.0)
Decl. = -34o 16' 35.7" (2000.0)

Spectra: none to date

AAVSO Chart(s): 'd' scale chart is available at: http://www.aavso.org/cgi-bin/searchcharts3.pl?name=n%20sco%2005

Report Object to the AAVSO as: 1737-34 N SCO 05

Observations Reported to the AAVSO: July 23.287 UT, <14 CCDV, ASAS-3; 26.596, 8.6 CCD, N. Hashimoto and T. Urata; 26.296, 8.98 CCDV, ASAS-3; 26.311, 8.98 CCDV, ASAS-3; 26.735, 8.9, T. Cooper, Bredell, South Africa.

Notes:
a. All information in this Alert Notice except magnitude from Tim Cooper is from IAU Central Bureau Electronic Telegram 185, ed. Daniel W. E. Green.
b. The region around the object is noted as being crowded with nearby stars.
c. Pojmanski reports that nothing is visible at this location down to magnitude 17 on Digitized Sky Survey images.
d. The nearest USNO-A2.0 star (red mag 17.4) has position end figures 21.987s, 35.85".
e. Nishimura's position end figures given as 22s, 15' 59" (equinox 2000.0); nothing was visible at this location down to magnitude 11 on his survey films taken on July 20.

Congratulations to Grzegorz Pojmanski for ASAS and Hideo Nishimura on their latest discoveries!

SUBMIT OBSERVATIONS TO THE AAVSO

We encourage observers to submit observations via our web site (online data submission tool WebObs), or by email in AAVSO format to observations@aavso.org. If you do not have AAVSO Observer Initials, please fill out the following URL so we may assign them to you.

http://www.aavso.org/observing/submit/apply.shtml

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).

ALERT NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION

An Alert Notice archive is available at the following URL:
http://www.aavso.org/publications/alerts/

Subscribing and Unsubscribing can be done at the following URL:
http://www.aavso.org/publications/email/

Many thanks for your valuable astronomical contributions and your efforts.

Good observing!

Elizabeth O. Waagen
Senior Technical Assistant

Keywords:
AAVSO 49 Bay State Rd. Cambridge, MA 02138 aavso@aavso.org 617-354-0484