Circular No. 2716 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Cable Address: SATELLITES, NEWYORK Western Union: RAPID SATELLITE CAMBMASS PERIODIC COMET HONDA-MRKOS-PAJDUSAKOVA (1974f) Dr. Elizabeth Roemer, University of Arizona, reports that this comet has been recovered on 30-min exposures with the Steward Observatory's 229-cm reflector on Kitt Peak, as shown below. L. M. Vaughn assisted. In the poor seeing the comet appears as a small spot, and on the first exposure it is superposed on a star trail. The indicated correction to the ephemeris on IAUC 2697 is negligible. 1974 UT R. A. (1950) Decl. m2 Nov. 10.07292 18 33.34 -12 45.4 ~19.0-19.5 10.09682 18 33.39 -12 45.6 NOVA PERSEI 1974 Dr. N. Sanduleak, Warner and Swasey Observatory, reports the discovery of a nova on an objective-prism plate taken with the Burrell Schmidt telescope, as follows: 1974 UT R. A. (1950) Decl. mpg Nov. 9 3 04.2 +46 56 ~11.0 The spectrum shows that the nova is in the '4640 A stage', suggesting that it is perhaps three magnitudes down from maximum. U CEPHEI Dr. E. C. Olson, University of Illinois Observatory, writes: "Observations of primary eclipse with four-color photometry on Sept. 22 UT gave duration of totality equal to or greater than 70 min. Totality lasted about 20 min longer in H-beta. Eclipse on Oct. 2 gave totality duration about 47 min in V (from approximately 6h13m to 7h00m UT), although V brightened by 0.02 magnitude during this interval. Minimum was well defined in H-beta and lasted about 55 min (from approximately 5h48m to 7h44m UT). Totality on Oct. 17 lasted about 110 min in V (from approximately 4h45m to 6h35m UT) and about 95 min in u (from approximately 4h59m to 6h32m UT). From the few available H-beta observations, primary minimum was not apparent, and irregular variations on the order of +/- 0.03 magnitude were present. The beta-index during totality was about 0.07 magnitude larger than on Oct. 2." 1974 November 12 (2716) Brian G. Marsden
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