Nova Sagittarii 1978 = IRC -20494 = V3876 Sagittarii
Abstract
R. D. Gehrz, G. L. Grasdalen, J. A. Hackwell and D. McClain, Department of Physics and Astronomy, University of Wyoming, point out that this 'nova' is certainly identical with IRC -20494, for which they have determined (using the 234-cm Wyoming Infrared Telescope) the position R.A. = 18h30m14s.9 +/- 0s.2, Decl. = -20o08'11" +/- 3" (equinox 1950.0). Infrared observations on Apr. 20.46 UT gave the following magnitudes: 2.3 um, 2.46; 3.6 um, 1.90; 4.9 um, 1.84; 8.6 um, 1.47; 10 um, 1.11; 11.4 um, 0.80; 12.6 um, 0.75; 19.5 um, 0.70. C. B. Stephenson, Warner and Swasey Observatory, informs us that IRC -20494 is identical with the long-period variable V3876 Sgr (cf. Third Supplement to GCVS; Hoffleit 1972, Inf. Bull. Variable Stars No. 729; Stephenson and Sanduleak 1976, ibid. No. 1213).
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- April 1978
- Bibcode:
- 1978IAUC.3213....1G