Circular No. 7622 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html ISSN 0081-0304 Phone 617-495-7440/7244/7444 (for emergency use only) SUPERNOVA 2001bh IN UGC 11635 D. W. Xu and Y. L. Qiu, on behalf of Beijing Astronomical Observatory supernova survey, report the discovery of an apparent supernova found on unfiltered CCD images taken on May 8.77 (poor image quality, magnitude not estimated) and 10.83 UT (mag about 17.0). SN 2001bh is located at R.A. = 20h43m29s.82, Decl. = +80o09'27".3 (equinox 2000.0), which is 1".8 west and 6".4 north of the nucleus of UGC 11635. A CCD image taken on 2000 Oct. 16.48 (limiting mag 18.2) showed nothing at this position. SUPERNOVA 2001bg IN NGC 2608 A. Gal-Yam and O. Shemmer, Tel Aviv University, report: "A spectrum (range 400-780 nm) of SN 2001bg (cf. IAUC 7621) was obtained by J. Dann using the Wise Observatory 1-m telescope (+ FOSC spectrograph) on May 10. The spectrum is similar to early spectra of the type-Ia SN 1994D before maximum, including the prominent silicon feature redward of 600 nm." H. Kawakita and K. Kinugasa, Gunma Astronomical Observatory (GAO); and H. Yamaoka, Kyushu University, write: "A low-resolution spectrum (range 380-750 nm) of SN 2001bg was taken with GAO 0.65-m telescope on May 10.55 UT. The preliminary reduction shows that the object to be a type-Ia supernova near maximum light. Adopting the NED recession velocity of 2135 km/s for NGC 2608, the supernova expansion velocity, measured from the Si II absorption minimum (rest 635.5 nm), is 9700 km/s. Note that NGC 2608 also produced SN 1920A (m_pg = 11.8)." SUPERNOVA 2001G IN MCG +08-17-43 T. Cameron reports the following CCD magnitudes of SN 2001G obtained at the University of Calgary's 1.8-m telescope at the Rothney Astrophysical Observatory: V filter, Jan. 23.18 UT, 14.65 +/- 0.005; 30.14, 14.90 +/- 0.007; Feb. 3.18, 15.09 +/- 0.010; 17.15, 15.46 +/- 0.011; 21.15, 15.76 +/- 0.007; 27.14, 16.14 +/- 0.012; Mar. 4.14, 16.28 +/- 0.011; 20.18, 16.65 +/- 0.018. B filter, Jan. 23.19, 14.49 +/- 0.005; 30.15, 14.20 +/- 0.005; Feb. 3.19, 15.10 +/- 0.007; 17.18, 15.86 +/- 0.010; 21.16, 16.47 +/- 0.025; 27.15, 16.91+/- 0.017; Mar. 4.19, 16.95 +/- 0.025. R filter, Jan. 23.20, 14.10 +/- 0.006; 30.16, 14.34 +/- 0.007; Feb. 3.20, 14.60 +/- 0.009; 17.17, 14.85 +/- 0.010; 27.16, 15.30 +/- 0.011; Mar. 4.16, 15.57 +/- 0.013. (C) Copyright 2001 CBAT 2001 May 11 (7622) Daniel W. E. Green