Amateur Astronomer Photographs the Surface of Ganymede

"Technology has radically changed the contributions that amateurs can make to the field of astronomy. Using a readily-available 'hobby' telescope, off-the-shelf camera and computer equipment, plus experienced observing skills, Emmanuel I. Kardasis of the Hellenic Amateur Astronomy Association has produced the first amateur albedo map of Jupiter's moon Ganymede. This demonstration has implications for the future role of amateur astronomers. The work will be presented at the European Planetary Science Congress in Madrid. An albedo map details higher areas of reflectivity on an object's surface recording where material is brighter or darker. Kardasis' albedo map closely aligns with professional images of Ganymede's surface, indicating features such as Phrygia Sulcus (furrows and ridges 3700km across) and the Nicholson region (a low-lying darker area)." More

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