Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 7115: U Sco; GK Per; C/1998 M5

The following International Astronomical Union Circular may be linked-to from your own Web pages, but must not otherwise be redistributed (see these notes on the conditions under which circulars are made available on our WWW site).

Read IAUC 7114 SEARCH Read IAUC 7116

View IAUC 7115 in .dvi or .ps format.
IAUC number 

                                                  Circular No. 7115
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)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


U SCORPII
     A. Niedzielski, Center for Astronomy, Torun University; and T.
Tomov and U. Munari, Padova and Asiago Astronomical Observatories,
write:  "We obtained spectra (range 435-495 nm; 0.1 nm/pixel) of U
Sco (cf. IAUC 7113) around Feb. 26.14 UT with the Asiago 1.22-m
telescope + Boller & Chivens CCD spectrograph).  The spectrum of U
Sco appears completely dominated by wide emission blends in which
identification is made uncertain by the extreme broadness of the
features (FWZI about 8600-11 000 km/s).  Probably present are N
III, C III, C IV, and hydrogen emission lines.  The presence of He
I and He II lines is suspected, too.  Monitoring continues."


GK PERSEI
     This 1901 nova has been having a small outburst, the last
having been in 1996 (IAUC 6325).  Visual magnitude estimates:  Feb.
11.818 UT, 13.0 (P. Schmeer, Bischmisheim, Germany); 12.803, 13.0
(Schmeer); 14.87, 13.0 (Schmeer); 16.869, 13.0 (Schmeer); 24.796,
11.9 (Schmeer); 26.845, 11.8 (Schmeer); 27.758, 11.7 (K. Hornoch,
Lelekovice, Czech Republic).


COMET C/1998 M5 (LINEAR)
     Ephemeris extension to IAUC 7080 (elements MPC 32866):

1999 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
Mar.  3    19 42.8    +77 29.6   1.537   1.808   88.6   33.2    9.5
      5    19 45.1    +79 26.0   1.533   1.816   89.3   33.1    9.5
      7    19 47.6    +81 24.4   1.529   1.823   90.0   33.0    9.5
      9    19 50.7    +83 24.5   1.528   1.831   90.6   32.8    9.5
     11    19 55      +85 26.2   1.528   1.839   91.2   32.7    9.6
     13    20 04      +87 29.0   1.529   1.847   91.6   32.5    9.6
     15    21 12      +89 31.4   1.532   1.856   92.0   32.4    9.6
     17     7 29      +88 21.9   1.537   1.865   92.3   32.2    9.6
     19     7 43      +86 17.6   1.544   1.874   92.5   32.0    9.7
     21     7 49.0    +84 13.1   1.553   1.884   92.7   31.9    9.7
     23     7 52.5    +82 09.1   1.563   1.893   92.7   31.7    9.7
     25     7 55.3    +80 05.7   1.576   1.903   92.7   31.6    9.8
     27     7 57.8    +78 03.4   1.590   1.914   92.5   31.4    9.8
     29     8 00.1    +76 02.4   1.606   1.924   92.3   31.2    9.9
     31     8 02.3    +74 03.0   1.623   1.935   92.0   31.0    9.9
Apr.  2     8 04.3    +72 05.5   1.642   1.947   91.6   30.9   10.0

                      (C) Copyright 1999 CBAT
1999 February 27               (7115)            Daniel W. E. Green

Read IAUC 7114 SEARCH Read IAUC 7116

View IAUC 7115 in .dvi or .ps format.

Our Web policy. Index to the CBAT/MPC/ICQ pages.

Valid HTML 4.01!