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Date and Time of the Query: 2018-12-12 T04:25:27 PST
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For refcode 1998IAUC.6994A...1C:
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NED Abstract

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1998IAUC.6994A...1C Circular No. 6994 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION SUPERNOVA 1998dn IN NGC 337A L. Cao, on behalf of the Beijing Astronomical Observatory (BAO) Supernova Survey, reports the discovery of a supernova (mag 15.8) found on an unfiltered CCD frame taken on Aug. 19.76 UT. SN 1998dn is located at R.A. = 1h01m27s.08, Decl. = -7o36'36".7 (equinox 2000.0), which is 102" west and 79" south of the center of NGC 337A. A similar observation on Aug. 22.79 confirmed the supernova's existence at almost the same magnitude. The Digital Sky Survey image and a CCD image taken on 1998 Jan. 15 of the same field show no sign of the new star. L. Cao and J.-Y. Wei, BAO; and W.-D. Li, University of California at Berkeley, report that a CCD spectrogram (range 380- 635 nm) of SN 1988dn was obtained by H.-M. Shi (Shanghai Astronomical Observatory) with the BAO 2.16-m telescope on Aug. 23.72 UT. The spectrum shows a red continuum, along with H-beta and He I 587.6-nm/Na D line features, indicating this to be a type-II supernova well after maximum. 1998 August 24 (6994) Daniel W. E. Green
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