(IAAC) Obj: M42 Trapezium - Inst: 6" f/8 Dobsonian Reflector

anonymous at sedna.atmob.org anonymous at sedna.atmob.org
Mon Oct 25 09:46:49 EDT 2004


Observation Poster: Mike Moffatt <mike at tulsawalk.com>

Observer: Mike Moffatt
Your skills: Beginner (< one year)
Date/time of observation: 24 October '04 / 2330 CT
Location of site: Broken Arrow, OK (Lat 35, Elev 700)
Site classification: Suburban
Sky darkness: 3.5 <Limiting magnitude>
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: Major - gibbous or near object
Instrument: 6" f/8 Dobsonian Reflector
Magnification: 120x Siebert
Filter(s): None
Object(s): M42 Trapezium
Category: Multiple star.
Constellation: ORI
Data: mag   size 
Position: RA :  DEC :
First light on homemade 6" f/8 dobsonian reflector with serta optics. Comparing view of Orion nebula under very moon lit skies to that of another homemade 8" f/5. Independently verified presence of E member of Trapezium group at the edge of visability with direct vision in the 6" at 120x.

8" scope revealed E member of Trapezium group steady and bright under direct vision at 100x
Optional related URLs: http://www.tulsawalk.com/telescope
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