Central Bureau for Astronomical Telegrams

Central Bureau for Astronomical Telegrams -- Image credits

IAUC 8516: 2005br; C/2005 D2-D5, E5-E9, F1, F2

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 8515 SEARCH Read IAUC 8517

View IAUC 8516 in .dvi, .ps or .PDF format.
IAUC number 

                                                  Circular No. 8516
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 2005br IN IC 5084
     Further to IAUC 8515, L. A. G. Monard reports his discovery of
an apparent supernova (mag about 16.5 +/- 0.3) on unfiltered CCD
images taken on Mar. 28.113 UT and confirmed on Apr. 19.114 (at mag
about 16.4 +/- 0.2).  The new object is located at R.A. =
21h09m13s.09, Decl. = -63o17'05".6 (equinox 2000.0), which is 14"
west and 15" north of the nucleus of IC 5084.  SN 2005br is not
visible on an image from the Digitized Sky Survey (limiting red mag
20.5) or on an image taken by Monard on Mar. 5.132 (limiting red
mag 18.0).


COMETS C/2005 D2-D5, E5-E9, F1, F2 (SOHO)
     Following are the initial positions for additional Kreutz
sungrazing comets found on SOHO website images (cf. IAUC 8515).  K.
Battams reports that C/2005 D5 reached peak brightness near mag
5-6; the other Feb. objects were only a little above background
(peak mag 7-8).  C/2005 D2 was stellar and faded out rapidly at 8-9
solar radii; C/2005 D3 was brighter and also stellar, fading
rapidly at about 9 solar radii; C/2005 D4 was small and faded at
9-10 solar radii.  No tail was visible for C/2005 D2, D3, D4, E7,
and F2.  Tail lengths (uncertainties +/- 1') for C/2005 D5:  tail
developed at about 12 solar radii; at 6.3 solar radii, > 10' (head
very much smaller); at 5.9 solar radii, 16'.8 (head effectively
gone); at 5.7 solar radii, 16' (no head).  Physical information for
other comets:  C/2005 E6, diffuse, possible tail; C/2005 E7, very
faint, diffuse; C/2005 E8, diffuse with a faint tail 262" long at
about 7.3 solar radii; C/2005 E9, very small and faint; C/2005 F1,
faint and diffuse, with hint of a tail; C/2005 F2, stellar.

 Comet       2005 UT       R.A.(2000)Decl.  Inst.  F    MPEC
 C/2005 D2   Feb. 22.087   22 37.6  -11 01   C3    TH   2005-G40
 C/2005 D3        22.279   22 44.9  -11 31   C3    KC   2005-G40
 C/2005 D4        26.346   22 55.1  - 9 34   C3    BZ   2005-G40
 C/2005 D5        26.571   23 07.9  -10 18   C3/2  BZ   2005-G40
 C/2005 E5   Mar. 11.966   23 45.9  - 4 14   C3    HS   2005-G93
 C/2005 E6        13.929    0 03.1  - 4 03   C3/2  BZ   2005-G93
 C/2005 E7        14.404   23 50.4  - 3 41   C3/2  XL   2005-G93
 C/2005 E8        14.863    0 01.4  - 3 21   C3/2  TH   2005-G93
 C/2005 E9        14.992   23 47.4  - 2 36   C2    BZ   2005-G93
 C/2005 F1        17.029    0 12.3  - 2 43   C3/2  HS   2005-G94
 C/2005 F2        18.571    0 10.8  - 1 44   C3/2  HS   2005-G94

                      (C) Copyright 2005 CBAT
2005 April 18                  (8516)            Daniel W. E. Green

Read IAUC 8515 SEARCH Read IAUC 8517

View IAUC 8516 in .dvi, .ps or .PDF format.

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

Valid HTML 4.01!