Central Bureau for Astronomical Telegrams
IAUC 5598: N Cyg 1992; CCO 1992; NOTICE TO SUBSCRIBERS
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Circular No. 5598
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)
NOVA CYGNI 1992
D. Hanzl communicates further photometry, obtained with the 0.4-m
reflector at the Nicholas Copernicus Planetarium and Observatory, Brno
(comparison star HD 195664): July 17.880 UT, V = 9.51 +/- 0.05, B-V =
-0.67 +/- 0.05, U-B= -0.64 +/- 0.05; 19.897, 9.47 +/- 0.08, -0.65 +/-
0.08, -0.68 +/- 0.08; 20.895, 9.50 +/- 0.03, -0.68 +/- 0.05, -0.67
+/- 0.05; 21.954, 9.47 +/- 0.01, -0.66 +/- 0.03, -0.65 +/- 0.07; Aug.
3.885, 9.63 +/- 0.05, -0.67 +/- 0.03, -0.68 +/- 0.05; 4.982, 9.52 +/-
0.03, -0.62 +/- 0.05, -0.65 +/- 0.07; 11.391, 9.69 +/- 0.03, -0.67 +/-
0.07, -0.70 +/- 0.06; 28.874, 10.04 +/- 0.04, -0.74 +/- 0.06, -1.24
+/- 0.05; 29.844, 10.07 +/- 0.05, -0.76 +/- 0.04, -1.24 +/- 0.05.
CATALOGUE OF COMETARY ORBITS 1992
Further to IAUC 5483, and as mentioned on MPC 20541, we remark
that this Catalogue is now available on an MS-DOS diskette for $100.00
and that this includes a facility for extracting individual orbits and
computing ephemerides (in the J2000.0 system).
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1992 August 31 (5598) Brian G. Marsden
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