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Randy Cordell
super member
Reged: 09/16/07
Posts: 196
Loc: Cedar Rapids IA
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Re: small binocs M44 star counts and galaxies
04/02/08 10:23 AM
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Hi Ed. This post prompted me to go out and examine M44 last night with my 7x50M's. I've never spent any time looking at it. I was trying to count stars hand held and it was immediately evidient to me that I didn't know how large an area is considered part of M44. I saw the chart through the link above and then through the link found there. It still looks like there are many stars that are borderline and just outside of the circle. I guess that is why you suggest printing it and then circling all the stars you can see. This can be pretty challenging I assume in figuring out which of the stars on the chart are in the eyepiece but it sounds like a fun challenge. It's also very interesting to attempt to determine the magnitude the instrument can resolve. The number of stars that can be counted can be somewhat subjective (depending on where a person defines the line of the circle lands) but the magnitude of the stars that are visible is less so. Would you count everything visible with averted vision? I seem to have pretty bad direct vision for all except the brightest objects so i use this a lot.
Thanks for an interesting (and yet again, exhaustive) post.
May the day-time nourishing rain always clear for night-time viewing!
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Randy Cordell
Meade StarFinder 10" F/4.7 Dob, Telrad, Craford, Fans
Bogen 3040 and 3050 Tripods with Orion Paragon-Plus Parallelogram or 3047 head
Oberwerk Mariner 7x50
Pentax PCF WP 8x40
Garrett Optical Gemini 15x70 WP-IF
Laptop running Kubuntu and Stellarium 0.9.1
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