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Jupiter's GRS Alert


GRS_Alert Observations over the last couple of years have shown discrete events of red material flowing apart from the GRS. This activity has increased over 2019 and recent observations obtained by several amateurs including notable images by A. Wesley and C. Foster show "flakes" outside of the GRS and a distorted shape.

Observations on May 22 show a very distorted GRS in blue and methane band filters that indicate an intensification of this recent activity. The images on the right were obtained by Anthony Wesley.

Observations are requested to monitor this activity. Red, Blue and methane band filters are required to investigate the nature of the behavior of the GRS. Frequent observations are needed as the activity is evolving on a daily basis. Ephemeris of the GRS transits on the Central Meridian of the planet can be found here