1P/1758 Y1 (Halley) - two maps: map 1 / map 2

 
 click on the image for a larger view (you will be redirected to my pbase-pages).

This map shows us also M2 and M30; two deep-sky objects of Messier's famous list.

  M2                         


           M30                                  


click on the image for a larger view (you will be redirected to my pbase-pages).

Interesting link on this subject: