Observer: Theo van de Mortel
Location: Deurne, The Netherlands
Date: April 8-16, 1997
These drawings of the shell structure are based on observations from a 222mm reflector f/6 (104x). The location was: Deurne, The Netherlands. Although the sky brightness during the observation period was varying, thanks to almost continuing northern winds, the conditions were in general quite well, for our country even extremely good.
April 8, 1997 20:15 UT April 10, 1997 20:15 UT April 11, 1997 20:00 UT April 14, 1997 19:30 UT April 15, 1997 20:15 UT April 16, 1997 19:30 UT
Theo van de Mortel
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