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AAVSO ALERT NOTICE 328 (October 17, 2005)

SUBJECT: V477 SCUTI = NOVA SCUTI 2005 Number 2 - Nova in Scutum

Object: 1833-12 V477 SCUTI = N SCT 05#2

Discovered Independently By: - G. Pojmanski, Warsaw University Astronomical Observatory, in the course of the All-Sky Automated Survey (ASAS)
- K. Haseda, Aichi, Japan (reported by H. Yamaoka, Kyushu University, Japan)

Discovery Magnitude:
- Pojmanski: 12.0 CCDV on Oct 11 and 10.4 CCDV on Oct 13 (180-mm-f.l. telephoto lens)
- Haseda: 10.6 photographic (using 400-mm-f.l. f/4 telephoto lens and TMax 400 film)

Discovery Date:
- Pojmanski: October 11.026 and 13.066 UT
- Haseda: Oct. 13.419 and 13.420 UT

- T. Puckett, Ellijay, GA, reports the following position measured from a CCD image taken by him Oct 15.99:
R.A. = 18h 38m 42.93s (2000.0)
Decl. = -12o 16' 15.6" (2000.0)
- Pojmanski:
R.A. = 18h 38m 43s (2000.0)
Decl. = -12o 16.3" (2000.0)
- Haseda:
R.A. = 18h 38m 44s (2000.0)
Decl. = -12o 16' 25" (2000.0)

Spectra: Spectra taken Oct. 15.75 UT by R. K. Das, N. M. Ashok, and D. P. K. Banerjee, Physical Research Laboratory (PRL), Navrangpura, India, and by M. Fujii, Ibara, Okayama, Japan, on Oct. 16.43 UT indicate a classical nova early in decline.

Chart: A chart has been prepared by Reinder Bouma and is available at Reinder revised his original chart posted at this address; be sure to use the chart with "_revision RJB14102005_" in the header.

Report Object to the AAVSO as: 1833-12 V477 SCT

Observations Reported to the AAVSO:

Oct. 14.7400 UT, 10.8, W. Vollmann, Vienna, Austria;
14.7431, 11.8, W. Kriebel, Osterwaal, Germany;
14.770, 11.0, K. Hornoch, Lelekovice, Czech Republic (via IAU Circular 8617);
14.7743, 11.1, D. Naillon, Lihons, France;
14.846, 11.7, P. Schmeer, Bischmisheim, Germany;
15.7465, 12.2, Kriebel;
15.7715, 11.8:, Naillon;
15.7743, 11.9:, E. Muyllaert, Oostende, Belgium;
15.8069, 12.0:, E. van Ballegoij; Heesch, Netherlands;
15.813, 11.7, Schmeer;
15.8370, 11.7, G. Poyner, Birmingham, England;
15.99, 10.2 CCD, T. Puckett, Ellijay, GA (via IAU Circular 8617);
16.7500, 12.37, CCDV, G. Sostero, Cavalicco, Italy;
16.7986, 12.3, van Ballegoij.

a. Discovery details from IAU Circular 8617 (ed. D.W.E. Green) unless otherwise noted.

b. Pojmanski notes nothing was seen on at this position on Digitized Sky Survey images, though the USNO-B1.0 catalogue lists several faint objects (red mag 19 or fainter) around this position. Also, nothing was visible at this position on an ASAS image taken on Oct. 7.055 down to CCDV magnitude 14.

c. N Sct 05#2 has been named V477 Sct, according to N. N. Samus, Institute of Astronomy, Russian Academy of Sciences.

Congratulations to G. Pojmanski and K. Haseda on their independent discoveries!


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Good observing!

Elizabeth O. Waagen
Senior Technical Assistant

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