21P/GIACOBINI-ZINNER


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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980904.86  - S 11.5: HS 20.3  T   10  100 1.2  3: ---    ---   Timo Karhula
Comments: A somewhat difficult observation due to the Full Moon. Site: Virsbo, Sweden. 


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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981016.74  - S  9.3 HS  44.5  L   4.5 64  1.7  6  0.07  080    Timo Karhula
Comments: A 12.3 mag stellar knot in center. Site: Virsbo, Sweden. 


Date (UT)  n MM Mag Ref Aper Type  f   x  dia DC taildg tailpa Observer
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981024.79  - S  8.8 HS  44.5  L   4.5 64  1.9  6  0.1   075    Timo Karhula
Comments: 11.9 mag pseudo-nucleus. Site: Virsbo, Sweden.