Observers: Geraint Jones, Steve Fossey
Location: University of London Observatory, Mill Hill
Date: April 2, 1996 00:00 UT
A 10-minute CCD image was obtained through a narrow-band filter centered at 6205 Angstroms, which included emission from H2O+ ions, while another was obtained through a second narrow-band filter centered at 6250 Angstroms, which let through dust-scattered sunlight alone. By subtracting the dust image from the dust and ions image, the tail rays were revealed.
The image measures approximately 160 000 by 107 000 km at the comet. At the time, the comet was 40.9 million km from the Earth, and 0.88 AU from the Sun.
Comet 1996 B2 Hyakutake Home Page