eso_eso9011a September 29th, 1990
Credit: ESO
This a reproduction of a small area of the photographic plate on which Minor Planet (3933) Portugal was discovered. Due to its orbital motion around the Sun, "Portugal'' is seen as a short trail, while the fixed stars in the background are point-like.
Provider: European Southern Observatory
Image Source: https://www.eso.org/public/images/eso9011a/
Curator: European Southern Observatory, Garching bei München, Germany
Image Use Policy: Creative Commons Attribution 4.0 International License
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