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S. Nakano, Sumoto, Japan, reports the discovery by Masakatsu Aoki, Tsukioka-cho, Toyama, of a supernova (mag 14) in NGC 1084, found on CCD frames taken on July 27.772 UT with a 0.43-m f/5 reflector. SN 1998dl was found on an unfiltered image taken on Aug. 20.5 UT (mag about 16.0), and was confirmed on earlier images taken on Aug. 2.5 (mag about 16.0) and 9.5 (mag about 15.9). Most of the lines arises from H I, Ca II, Na I, Ba II, Fe II, O I, and Sc II. A narrow interstellar absorption of Na I D (measured at 591.8 nm) is clearly visible. Use, Smithsonian CBET 1656), obtained on Jan. 19.95 UT with the 3.5-m TNG (+ DOLORES; range 400-900 nm, resolution 1.0 nm), shows it to be that of a highly reddened type-II supernova about one week after explosion. The new object is located at R.A. = 2h46m01s.47, Decl. R. Kushida (Yatsugatake) reports that a frame taken on 1995 Dec. 21 shows no star at the position of SN 1996an. A KAIT image taken on 1997 Dec. 26.2 shows no star at this position (limiting mag about 18.0). 2008, A.Ap. S. Benetti, M. Turatto, and G. van de Steene, European Southern Observatory (ESO), report: "Inspection of a fully-reduced CCD spectrogram (range 400-980 nm, resolution 0.7 nm) obtained on July 30.41 UT with the ESO 1.5-m telescope (+ Boller & Chivens spectrograph) at La Silla confirms this object as a type-II supernova, approximately 2 months after explosion. S. Nakano, Sumoto, Japan, reports the discovery by Masakatsu Aoki, Tsukioka-cho, Toyama, of a supernova (mag 14) in NGC 1084, found on CCD frames taken on July 27.772 UT with a 0.43-m f/5 reflector. King, M. Modjaz, T. Shefler, E. Halderson, W. D. Li, R. R. Treffers, and A. V. Filippenko, University of California at Berkeley, report their discovery of an apparent supernova during the course of the Lick Observatory Supernova Search (cf.
The expansion velocity, deduced from the H-alpha FWHM, is about 11500 km/s. S. Benetti, Istituto Nazionale di Astrofisica, Osservatorio Astronomico di Padova; S. Valenti, Belfast University; and A. Magazzu and A. Harutyunyan, Telescopio Nazionale Galileo (TNG), report that a spectrum of 2009H (cf.
The supernova's 2000 position, …
Y. Kushida, Yatsugatake South Base Observatory, provides the following precise position from Aoki's exposure for SN 1996an: R.A. = 2h46m00s.83, Decl. The expansion velocities deduced from the minima of the most prominent lines are: 4250 km/s (H-alpha); 4000 km/s (Ca II infrared); 3650 km/s (Na I); 2600 km/s (Ba II); and 3000 km/s (Fe II).
J. Y. Agreement NNX16AC86A, International Astronomical Union Circular, Is ADS down? The best fit to this spectrum found by GELATO (Harutyunyan et al. = -7o34'25".1 (equinox 2000.0), which is about 21".6 east and 11".6 north of the nucleus of NGC 1084. Notice, Smithsonian Terms of Astrophysical Observatory. J. Y.
SN 1996an and SN 1963P also appeared in NGC 1084. 488, 383) is with early spectra of SN 2005cs at several days after explosion (Pastorello et al.
IAUC 6627) with the 0.8-m Katzman Automatic Imaging Telescope (KAIT). Use, Smithsonian
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