for instance faint sunward emiSSiOnS Baade displayed a sunward fan or be hoped that the activity observed al- were seen in P/Hailey at 1.6 A. U. after streamer (but not a jet) at almost 4 A. U. ready at this distance will continue perihelion in 1910. There...
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for instance faint sunward emiSSiOnS Baade displayed a sunward fan or be hoped that the activity observed al- were seen in P/Hailey at 1.6 A. U. after streamer (but not a jet) at almost 4 A. U. ready at this distance will continue perihelion in 1910. There are also re- from the Sun. through the perihelion passage on April ports about jets seen in P/Hailey at more The presence of a jet in comet Austin 9, so that we shall have the opportunity than 2 A. U. preperihelion in 1985. In at 1.7 A. U. preperihelion is not a very to admire a really bright comet this 1955 a distant comet discovered by rare event among comets. Still, it is to spring. R. M. West Photometry of Comet Austin J. MANFROID, Institut d'Astrophysique, Cointe-Ougree, Belgium P. BOUCHET and C. GOUIFFES, ESO Strömgren photometry of Gomet Aus- ß were equal to 1 A. U.). n is a parame- stant. Hence it would show no ß depen- tin (1989 c 1) has been obtained at La ter depending on the evolution of the dency. The relevant equation w
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