Y. Andrillat and C. Fehrenbach, Haute Provence Observatory, report that spectrograms of range 5900-12 000 A (dispersion 230 A/mm) and range 3800-5000 A (dispersion 80 A/mm) show emissions from H-alpha to H9, Fe II, Ca II (including the infrared triplet), very intense O I 8446 and 7772 A, N I, C I, Si I, Si II, Na I, Mg II, [O I] 6300 and 6363 A and [N I] 10 394-10 404 A. On the blue plate the broad emissions (velocity 1350 km/s) are bordered by absorption systems at -1040 km/s and (less intense) at -560 km/s. Absorptions of Ti II, Mg II, Si II, Ca II and probably Mg I and O I are identified. G. Klare and B. Wolf, Landessternwarte, Heidelberg-Konigstuhl, report that on Nov. 8.77 UT the spectrum in the blue (dispersion 55 A/mm) was characterized by very broad and intense H and metallic (Fe II, Ti II) emission lines. In addition to the principal absorption spectrum strong diffuse enhanced absorption lines were found from H-beta to H-delta with a velocity of about -2000 km/s. The following photoelectric observations have been reported: 1976 UT V Observer 1976 UT V Observer Oct. 22.85 6.88 Di Paolantonio Nov. 5.01 8.23 Whitney 28.75 7.09 " 6.02 8.56 Landis Nov. 2.01 6.68 Landis 9.05 7.85 Whitney 3.02 6.64 " 11.02 7.72 " 4.00 7.70 " A. Di Paolantonio (Collurania Observatory). Comparison star BD +19 4028 (assumed V = 6.90). Communicated by P. Tempesti. H. Landis (East Point, Georgia). Communicated by J. Mattei. C. A. Whitney (Harvard College Observatory, Agassiz Station). B-V = +1.22 on Nov. 5, +1.04 on Nov. 9 and +1.12 on Nov. 11. Comparison star HD 182293 (assumed V = 7.14, B-V = +1.15).
International Astronomical Union Circular
- Pub Date:
- November 1976