Our Astronomical Column

    Article metrics

    Abstract

    Comets.—Popular Astronomy for February contains a photograph by Prof. G. van Biesbroeck of Wilk's comet taken on Dec. 31, 1929. The tail extends as a narrow ribbon to the edge of the plate 1°36′ from the nucleus. There are fainter tails, about 40′ long, on each side of it. There is a bright circular coma, some 4′ in diameter, with a fainter border. On Jan. 22 the tail lagged 5° or 6° behind the prolongation of the line from the sun to the comet.

    Rights and permissions

    Reprints and Permissions

    About this article

    Comments

    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.