AAVSO ALERT NOTICE 300 (March 24, 2003)
SUBJECT: 1009+03B SUPERNOVA 2003CG IN NGC 3169
1009+03B SUPERNOVA 2003CG IN NGC 3169 (SEXTANS)
Independently Discovered By: K. Itagati, Teppo-machi, Yamagata, Japan; R. Arbour, South Wonston, Hampshire, England (IAUC No. 8097)
Discovery Magnitude: 14.4 unfiltered CCD (0.60-m f/5.7 reflector, Itagati); 14.5 unfiltered CCD (0.30-m f/6.3 reflector, Arbour) (IAUC No. 8097)
Discovery Date: March 21.51 UT (Itagati); March 22.835 UT (Arbour) (IAUC No. 8097)
R.A. of NGC 3169 (2000): 10h 14m 15s.97 Decl. of NGC 3169 (2000): +03o 02.5 14.4 (IAUC No. 8097)
Supernova Position: 14 east and 5 north of the nucleus of NGC 3169 (IAUC No. 8097)0
AAVSO Chart(s): fscale chart
Report Object to the AAVSO as: 1009+03B SN 2003CG
Observations Reported to the AAVSO: March 13.3 UT, <19.0: CCD, K. Itagati, Teppo-machi, Yamagata, Japan; 22.3, 14.9 CCD, Itagati; 22.444, 14.3 CCD, Itagati; 22.559, 15.5 CCD through clouds, Y. Kushida, Yatsugatake South Base Observatory; 24.1368, <14.9, M. Simonsen, Macomb, MI. (All observations from IAUC No. 8097, except the last reported to AAVSO HQ by M. Simonsen.)
Notes: 1. M. Simonsen reports that supernova is currently difficult to observe with a 12 telescope and suggests that since the object is so close to the nucleus of NGC 3169 and since the galaxy is bright, it might become more apparent once it rises to a visual magnitude of ~14.5. 2. SN 1984 E also appeared in NGC 3169. 3. See the full announcement in International Astronomical Union Circular (IAUC) No. 8097.
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Many thanks for your valuable astronomical contributions and your efforts.
Janet A. Mattei
Kerriann H. Malatesta