(Tony Flanders) wrote in message m...
(PrisNo6) wrote in message . com...

snip

Tony -

Just to follow-up; no response necessary.

The chart would be easier to use if the dot sizes were significantly smaller.

All charts have been updated with smaller dots, e.g. -

http://members.csolutions.net/fisher...view_chart.htm

Correlating the star numbers on the correct-image chart with the magnitudes on the mirror-reversed chart was a minor nuisance.

An odd view (mirror) star number chart was added.

http://members.csolutions.net/fisher...view_chart.htm

In a few cases, I was surprised that stars with fairly different listed
mags seemed about equally easy (or hard) to see. Notably, at 20X, #094
[9.7] seemed no brighter than #099 [10.0], and at 60X, #065 [9.6] seemed
little brighter than #066 [10.3].

The NGC1647 v8.0-13.0 chart homepage was beefed up to address the
distribution of Johnson color indices in the underlying tables:

http://members.csolutions.net/fisher...ect_v90_13.htm

Thanks again, Kurt

My main NGC1647 notes homepage is at:

http://members.csolutions.net/fisher...47_Project.htm