[AZ-Observing] Re: Star Charts
- From: Stan Gorodenski <stanlep@xxxxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Tue, 30 Nov 2010 10:30:29 -0700
p.s., It occurred to me that the True Visual Magnitude Photographic Star
Atlas was one recommended in Henden and Kaitchuck's Astronomical
Photometry, published in 1982. This was before the proliferation of all
these computer generated charts, but still, it is hard to use. Maybe
back then this was not much of a consideration because of the lack of
computer based programs that can zoom in a star field, and print it out.
Stan
On 11/30/2010 10:17 AM, Stan Gorodenski wrote:
> It seems everyone who puts out these star charts don't care whether or
> not they are true visual magnitude, i.e., taken in a wavelength near
> to what the eye would see. It is understandable since they only have
> access to the base surveys they can get access to, which were not
> taken in wavelengths more to true visual. There once was a set of
> charts, True Visual Magnitude Photographic Star Atlas, that was closer
> to what the eye can see, but it was on paper, not on a cd so that one
> can do all the fancy things with them. If fact, they were put out
> (paper) and the scale used made them almost impossible to use. One
> could never be sure if a small black speck was a star or an
> imperfection in the paper.
> Stan
>
>
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