(IAAC) Obj: Parsamyan 21 - Inst: 20" f/10 equatorial classical Cassegrain
Observer: Dave Mitsky
Your skills: Intermediate (some years)
Date/time of observation: 01:40 UT 9/24/98
Location of site: Colebrook, PA (Lat , Elev )
Site classification: Rural
Sky darkness: >5.5 <Limiting magnitude>
Seeing: 9 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 20" f/10 equatorial classical Cassegrain
Magnification: 203x, 302x
Filter(s): none and UHC
Object(s): Parsamyan 21
Category: Reflection nebula.
Data: mag ~13.5 size ~20"
Position: RA 19:29 DEC 09:39
Parsamyan 21, a dim "cometary" nebula, was barely visible with averted vision.
Using high power allowed a small, comet-like glow to be seen. The use of a
Lumicon UHC filter was detrimental as might be expected given the nature of
I learned of Parsamyan 21, also known as NS 18, through a sci.astro.amateur
observing report by Dave Riddle.
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