Pele, which produced the larger plume deposit southwest of Pillan, also appears different than it did during the seventh orbit, perhaps due to interaction between the two large plumes. Pillan's plume deposits appear dark at all wavelengths. This color differs from the very red color associated with Pele, but is similar to the deposits of Babbar Patera , the dark feature southwest of Pele. Some apparent differences between the images are not caused by changes on Io's surface, but rather are due to differences in illumination, emission and phase angles. This is particularly apparent at Babbar Patera.
North is to the top of the images.
Amaterasu Patera , the dark spot north of Loki, has darkened since G1. Voyager images obtained in 1979. The resolution is 11.2 kilometers per picture element. North is to the top. The smallest features wich can be discerned are 6 km in size.