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. Green areas may correspond to areas with more sulphur. The blue or violet areas may be coated with sulphur dioxide frosts. Io's Sodium Cloud T his image of Jupiter's moon Io and its surrounding sky is shown in false color. North is at the top, and east is to the right.