Norse group of satellites around Saturn is formed by 29 moons, but researchers have so far been able to only provide details of Phoebe. However, this week was dedicated to the study of Hyrrokkin, which is much smaller with nearly 8km in size and located much farther away.

Hyrrokkin appears as a mere point of light even in Cassini's high-powered Narrow-Angle Camera. Researchers are making efforts to learn as much as possible from this point of light, and their stint will help understand the moon's orbital trajectory.

Hyrrokkin's orbit is unusual as it moves dramatically closer and farther from Saturn as it revolves around the planet. The Norse group is unique because of its orbiting direction. The implications from this suggest that these objects probably did not form with Saturn. Researchers believe that these objects were instead captured when straying too close to the planet over the last few billion years.

Researchers will be able to understand constraints on the shape and rotational characteristics of the moon by analyzing changes in the apparent brightness of Hyrrokkin over time.

NASA, ESA, and the Italian Space Agency are making joint efforts to make the Cassini-Huygens mission a success. Cassini was launched in 1997 and it reached Saturn in 2004. Since then, it has been providing researchers significant data about the planet, its moons, and its rings.

The Huygens probe made the first landing on Titan in 2005. Cassini has also provided researchers detailed images a hexagonal jet stream pattern near the north pole of Saturn.