Library of Congress Cataloging-in-Publication Data Third reference catalogue of bright galaxies / Gerard de Vaucouleurs ... [et al.].p. cm. Includes bibliographical references. Contents: v. 1. Introduction, references, notes, and appendicesv.2. Data for galaxies between Oh and 12h -v.3. Data for galaxies between 12h and 24h.

Library of Congress Cataloging-in-Publication Data Third reference catalogue of bright galaxies / Gerard de Vaucouleurs ... let al.l. p. cm. Includes bibliographical references. Contents: v. 1. Introduction, references, notes, and appendicesv.2. Data for galaxies between Oh and 12h -v.3. Data for galaxies between 12h and 24h.

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The U,B,V light and color curves of SN 1979c in M100 from 1979 April 15 to August 4 are derived from coordinated visual, photographic, and photoelectric observations at the McDonald and U.S. Naval Observatories supplemented by Kaila's prediscovery observation and IUE data. The light curves, color curves, color-color evolution, and color excess of the supernova are discussed. The distance modulus of M100 derived by eight methods is ¡x 0 = 30.30 ± 0.15. The absolute magnitude (corrected for extinction) of SN 1979c at or near maximum on April 15 was M m°( R) = -19.45 with (B-Y9 M° ~ -0.13 and (U -B) m° ~ -0.97, making it the brightest type II supernova on record. The corrected color indices at maximum match those of a blackbody at T = 18,000 K, but do not fit the blackbodv curve at later times.

N2366:(B-V)(0), .56 (move one column to right in listing).N2475: SGB, -20.1. N4039:Dec, -18°36 (no change in the other coordinates). N4782 and N4783:Interchange the values of m H , m c , and m' c .N4782 is the brightest.N4789A: No V 0 , 5 is AV. N5396:Reject the object and all entries (N5396 does not exist).

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