I. D. Howarth, Department of Physics and Astronomy, University College, London, provides the following observations, confirming that the eclipse has begun: Nov. 3.9 UT, V = 4.87, B = 6.84; Nov. 22.9, V = 5.13, B = 7.08, U = 8.52. With further reference to the note on IAUC 3006, A. Galatola suggests that 20 Cep be used for the comparison star and that each observer determine its photometric parameters in his own telescope system.
International Astronomical Union Circular
- Pub Date:
- December 1976