Abstract
Abstract270 images of the near-nucleus region of comet HB were obtained both in integral light (without filters) and using the narrow band interference IHW filters CO+C3C2, RC (red continuum). Prom the measurements of the expanding shells (arcs) the following result was obtained: the period of rotation of the comet nucleus is equal to 11.41±0.05 h; expansion velocities of the shells (arcs)vare in the limits of 0.61-1.99 kms−1, and accelerations of the shellsgin the limits from −18.3 × 10−3ms−2to 4.0 × 10−3ms−2.
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