[Iaude] CBET 4546: 20180818 : COMET 21P/GIACOBINI-ZINNER

quai at eps.harvard.edu quai at eps.harvard.edu
Sat Aug 18 07:50:40 EDT 2018


                                                  Electronic Telegram No. 4546
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau at eps.harvard.edu (alternate cbat at iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


COMET 21P/GIACOBINI-ZINNER
     Selected visual total-magnitude and coma-diameter estimates:  June 13.02
UT , 12.2, 1'.5 (J. J. Gonzalez, Leon, Spain, 0.20-m reflector); 20.88, 11.8,
0'.8 (W. Hasubick, Buchloe, Germany, 44-cm reflector); July 2.94, 10.9, 2'.5
(M. Lehky, Hradec Kralove, Czech Republic, 0.20-m reflector); 9.97, 10.3,
3'.5 (Gonzalez); 13.50, 10.0, 4' (S. Yoshida, Gunma, Japan, 0.40-m reflector);
18.04, 9.9, 4' (Gonzalez); 23.48, 9.4, 5' (M.-T. Hui, Mt. Pinos, CA, USA;
20x80 binoculars; twilight); 31.76, 9.4, 3'.4 (K. Yoshimoto, Yamaguchi,
Japan, 0.20-m reflector + CCD); Aug. 1.92, 9.3, 5' (Gonzalez); 7.94, 8.0, 12'
(Gonzalez, 10x50 binoculars); 11.95, 7.9, 7' (Gonzalez); 14.93, 7.8, 8'
(Gonzalez).


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2018 CBAT
2018 August 18                   (CBET 4546)              Daniel W. E. Green



More information about the Iaude mailing list