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IAUC 4609: ASM 2000+25; Sats OF SATURN AND URANUS; 3C 279, PKS 1510-089 AND OJ 287

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                                                  Circular No. 4609
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


ASM 2000+25
     P. Charles, Royal Greenwich Observatory; B. Hassall and G.
Machin, University of Oxford; A. Smale, Mullard Space Science
Laboratory; J. Allington-Smith, University of Durham; and R. Corbet,
Institute of Space and Astronautical Science, report: "We observed ASM
2000+25 candidate B on June 7.12 UT with the faint object spectrograph
(range 360-950 nm, resolution 0.9 nm) on the 4.2-m William Herschel
Telescope on La Palma.  The object displayed a smooth continuum with
superposed weak H alpha emission (equivalent width 0.34 nm) and very
broad He II 468.6-nm emission (e.w. 1.17 nm, probably contaminated by
the Bowen blend).  Weak (e.w. 0.2-0.3 nm) interstellar features (Na D
and 577.8, 617.7 and 628.4-nm bands) were also seen.  This spectrum
closely resembles that of A0620-00 = V616 Mon taken one month after
outburst (Oke and Greenstein 1977, Ap.J. 211, 872).  The optical
identification of ASM 2000+25 can now be considered secure."


SATELLITES OF SATURN AND URANUS
     The IAU Executive Committee has approved new designations and
names that will be formally adopted by the General Assembly in August:

     Saturn XII    Helene      = 1980 S6  ('Dione B')
     Uranus VI     Cordelia    = 1986 U7
     Uranus VII    Ophelia     = 1986 U8
     Uranus VIII   Bianca      = 1986 U9
     Uranus IX     Cressida    = 1986 U3
     Uranus X      Desdemona   = 1986 U6
     Uranus XI     Juliet      = 1986 U2
     Uranus XII    Portia      = 1986 U1
     Uranus XIII   Rosalind    = 1986 U4
     Uranus XIV    Belinda     = 1986 U5
     Uranus XV     Puck        = 1985 U1

These satellites of Uranus are numbered in order of increasing
distance from the primary.


3C 279, PKS 1510-089 AND OJ 287
     Corrigendum.  On IAUC 4595, line 1, for Cararias read Canarias.


1988 June 8                    (4609)              Brian G. Marsden

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