Central Bureau for Astronomical Telegrams
IAUC 3552: IRC +30219; Q0957+561; TT Ari; 1980h
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Circular No. 3552
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 617-864-5758
IRC +30219
M. Cohen, Ames Research Center, reports: "The extreme carbon
star IRC +30219 (= CIT 6) is again undergoing a strong emission-line
phase in which photospheric features are completely obscured
and a shock spectrum is visible (cf. Cohen 1980, Ap.J. Letters 238,
L81). It is strongly urged that during this phase efforts be made
to look for infrared lines of molecular hydrogen from the shock,
evidence of unusually high mass loss, signs of high velocity gas in
the near infrared spectrum at the highest spectral resolution, and
changes in the carbon monoxide microwave spectrum."
Q0957+561
I. M. Kopylov, Director of the Special Astrophysical Observatory,
Zelenchukskaya, communicates: "G. M. Beskin, S. I. Neizvestnyj
and V. F. Shvartsman report that observations of the double quasar
Q0957+561 with the 6-m telescope reveal ratios of the ultraviolet
fluxes of components A and B which coincide with ratios of the radio
fluxes obtained with the Very Large Array and very long baseline
interferometry during the same time periods. The observations
reveal the following flux ratios of A to B in the U-filter on the
corresponding dates: 1979 Dec. 22, 1.33 +/- 0.02; 1980 Feb. 16, 1.21
+/- 0.03; Oct. 9, 12 and 13, 0.96 +/- 0.02. The similarity of the
ultraviolet to the radio ratios of these two components supports the
hypothesis that A and B are two images of the same quasar, as the
time delay between the two light paths > 1 yr (cf. IAUC 3533). It
is urged that synchronous ultraviolet and radio observations be
made of this object on 1981 Jan. 25-28, Feb. 23-26 and Mar. 24-28."
TT ARIETIS
J. E. Bortle, Stormville, NY, reports the following visual
magnitudes: Nov. 27.051 UT, 13.9; 30.143, 13.9; Dec. 2.012, 13.8;
6.163, 12.9; 6.985, 12.7; 14.171, 11.9.
PERIODIC COMET TUTTLE (1980h)
Visual magnitude estimates and coma diameters: Nov. 17.39 UT,
7.5, 7'.8 (J. F. Bortle, Stormville, NY, 10 x 50 binoculars); 30.43,
6.9, 7'.2 (Bortle); Dec. 5.40, 7.0, 6' (C. S. Morris, Harvard, MA,
20 x 80 binoculars); 11.44, 6.7, 7'.6 (Bortle).
1980 December 17 (3552) Daniel W. E. Green
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