The anti-tail of Comet Bradfield /1975p/

The predicted antitail of Comet Bradfield 1975p was observed photographically on January 3, 1976. The predicted range for the antitail's orientation is fully consistent with the observation, which indicates that the detectable production of millimeter- and submillimeter-sized dust grains commenced at heliocentric distances between 1.1 and 1.3 AU before perihelion (early November 1975). The photograph also shows the ordinary tail and an extremely faint glow connecting the two tails and spanning an approximately 165-deg sector of the sky to the west of the comet. This glow is due to a continuous emission of dust from the comet during the month of December.