The Paris Observatory
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| A brief historical account | The Astrographic Catalogue | The sky charts |
The Paris Observatory
It was assigned the zone +24° to +18°, but it made heliogravures only for the +18° +20°, + 22°, +24° zones.
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Charts held at INAF-Osservatorio Astronomico di Palermo
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Image: www.actuacity.com