[AZ-Observing] Re: NGC 7464

Jack,

As a matter of fact, I do have _Vickers CCD Atlas: North_. Retrieving it from 
my accessory case in the garage--I never observe without it--I compared the 
Vickers image of this galaxy trio with my sketch. It is likely I observed NGC 
7464 per the scenario you describe.

In my original sketch, the brightest portion of the galaxy I identify as NGC 
7463 is positioned where NGC 7464 is located in the Vickers image, along a 
line from the 8.2 magnitude star (PPM 142100) at the center of my sketch 
toward the northernmost star in the threesome to the east-northeast. At 129X 
in my 10-inch, this galaxy appeared as a single extended object. Oddly, my 
drawing shows the region I originally identified as the core (which may in 
fact by NGC 7464) offset from center. There is a very subtle nebulosity 
extended from this brighter section to the west-northwest. This may be the 
core of NGC 7463.

This corresponds better to the calculated surface brightnesses for the 
objects. NGC 7463 should be a threshold object, while NGC 7464 should have 
been comparatively easy. I plan to revisit this interesting trio in two weeks 
to test your explanation.

Thanks,

Bill Ferris
Flagstaff, AZ

Jack Jones wrote:
> Actually I think you may have observed 7464 and have recorded it in your
> drawing. If you look at 7463, you will notice it extends a little out
> toward 7465 after the bright nucleus oval. You may have mistaken 7464
> for the fuzziness a little further on! You either drew it as nebulosity
> or thought there was a smudge there. Or maybe it IS a smudge? Anyway,
> what a great drawing. In my Deep Space CCD Atlas North (Vickers), it is
> a small round fuzzy dot of an elliptical GX in that spot and is prob,
> the reason for the difficulty in observing it. I "don't like" tiny
> planetaries for the same reason: they look like stars. Check into this
> book; I use the CCD Atlas all the time to check what I see and settle
> arguments with myself and others.
> 

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