Nova Sct 2000 (=HadV46=V463 Sct)

Katsumi Haseda, Toyohashi, Aichi, Japan, has discovered an apparent variable (m_pg 10.6) on Mar. 5.81 UT 10-cm F4.0 twin patrol cameras (vsnet-alert 4381, vsnet-alert 4379).

(Discovery image taken by K. Haseda; vsnet-alert 4491)

(CCD image by S. Kiyota)

It is confirmed by photograph taken by the discoverer on Mar. 13.819 at m_pg 11.6 (vsnet-alert 4398), and by unfiltered CCD images taken by M. Uemura and T. Kato on Mar. 14.9 (mag 11.24), which indicates that it would not be a red variable and is in the rapidly declining phase. H. Yamaoka derived the position using this CCD image as 18h34m03s.16, -14o45'11".46 (equinox 2000.0) (vsnet-alert 4403). On the DSS1 or 2 images, there is no star brighter than mag 19, and the most neighbouring star is USNO0750.13593837 (rmag = 15.7, bmag = 17.1) about 3" west from the object. K. Takamizawa has provided the prediscovery magnitude estimates from his patrol films, which and Haseda's prediscovery magnitudes show that it has been active since early February and experienced additional eruptive brightening in early March (vsnet-alert 4407). M. Fujii, Kurashiki, Okayama, Japan, has taken a spectra of this object on Mar. 16.81 with 0.28-m reflector, which shows a strong H-alpha emission (FWHM = 940 km/s, steeper in blueward) then confirms that it is indeed a nova. Emission lines of H-beta and Fe II are also detected with blueward steepness or weak absorption (vsnet-alert 4416). S. Kiyota, Tsukuba, Japan, also taken a spectrum which shows H-alpha emission. The nova rapidly faded around the end of March (vsnet-alert 4566).

(Spectrum taken by Mitsugu Fujii on Mar. 16.81 UT)

Light Curves and General Information of This Object