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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
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

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."

     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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