Electronic Telegram No. 2330 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Room 209; Dept. of Earth and Planetary Sciences; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbat@iau.org; cbatiau@eps.harvard.edu URL http://www.cfa.harvard.edu/iau/cbat.html SUPERNOVA 2010eb IN NGC 488 Further to CBET 2321 and 2323, D. Milisavljevic, R. Fesen, and J. Parrent, Dartmouth College, report on low-resolution spectra (range 440-800 nm) of SN 2010eb obtained during morning twilight with the 2.4-m Hiltner telescope (+ CCDS) at the MDM Observatory on June 13.47 UT. Inspection of these spectra show that 2010eb appears to be a spectroscopically peculiar, sub-luminous type-Ia supernova. The spectra most closely resemble that of SN 1998bp (Matheson et al. 2008, A.J. 135, 1598) at approximately two weeks after maximum light. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 June 18 (CBET 2330) Daniel W. E. Green