(IAAC) Obj: Jonkherre 900 (PK 194+2.1) - Inst: 13" f/5.6 dob
Observer: Steve Coe
Your skills: Advanced (many years)
Date/time of observation: Not specified.
Location of site: Not specified.
Site classification: Rural
Sky darkness: 8 <1-10 Scale (10 best)>
Seeing: 8 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 13" f/5.6 dob
Magnification: 100X, 285X
Object(s): Jonkherre 900 (PK 194+2.1)
Category: Planetary nebula.
Data: mag 12 size 12"x10"
Position: RA 06:25.9 DEC +17:47.2
I have observed J 900 once with the 13" f/5.6 while at
a rural site on a night I rated 8/10 for seeing and contrast.
J 900 Pretty bright, very small, somewhat elongated, grey-green in
color. This object can be found at 100X and going to 285X with
averted vision makes it grow. From R. Jonckheere PN catalog early in
this century. (Pretty soon I will have to amend that statement!)