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Main
Date: 11 May 2007 12:32:33
From: canopus56
Subject: Table for selecting planetary color filters
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I have prepared a table, by body, of the details that can be enhanced
on planetary bodies by color filter number.
http://members.csolutions.net/fisherka/astronote/plan/pcfilt/PlanetaryColorFiltersTable.html
The usual order of presentation in manufacturer product inserts is by
color filter number. That order is difficult to use because to build a
filter wheel for a particular body, all filter descriptions must be
read.
The table provided here is ordered by solar system body-effect-filter
order. This allows one to look at a single planetary body at a time
and to quickly decide what filters might be helpful.
An example wheel load for Saturn, developed using the table, might
be:
12 Yellow, Deep (blue belt detail)
38A Blue, Dark (red belt detail)
23A Red, Light (polar regions)
11 Yellow-Green (Ring division)
47 Violet (Cassini's division)
25 Red (High blue clouds)
58A Green (White clouds)
The descriptions were assembled from product inserts and websites. The
table also includes the filters transmission factor and a more
detailed manufacturer effect description. Note that many filters with
low transmission factors will only work with larger apetures, i.e. -
eight or ten inches or greater. A fact not made consistently clear in
most product inserts.
There is a brief discussion of how planetary color wheels work at the
bottom of the web document.
- Enjoy - Canopus56
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Date: 12 May 2007 21:51:46
From: canopus56
Subject: Re: Table for selecting planetary color filters
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On May 12, 3:21 pm, Ben <bet71...@netzero.com > wrote:
> On May 12, 3:49 pm, Eric <N...@invalid.com> wrote:
<snip all >
Eric and Ben wrote;
> > Nice! Thanks for posting it
> Nice! Very comprehensive in keeping with all of your
> work.
Thanks for the kind words. I tried to stick to the descriptions in
the product inserts but had to fill in some blank table cells. If
anyone sees and glaring errors, please let me know. - Kurt
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Date: 12 May 2007 14:21:10
From: Ben
Subject: Re: Table for selecting planetary color filters
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On May 12, 3:49 pm, Eric <N...@invalid.com > wrote:
> canopus56 wrote:
> > I have prepared a table, by body, of the details that can be enhanced
> > on planetary bodies by color filter number.
>
> http://members.csolutions.net/fisherka/astronote/plan/pcfilt/Planetar...
>
>
>
>
>
>
>
> > The usual order of presentation in manufacturer product inserts is by
> > color filter number. That order is difficult to use because to build a
> > filter wheel for a particular body, all filter descriptions must be
> > read.
>
> > The table provided here is ordered by solar system body-effect-filter
> > order. This allows one to look at a single planetary body at a time
> > and to quickly decide what filters might be helpful.
>
> > An example wheel load for Saturn, developed using the table, might
> > be:
>
> > 12 Yellow, Deep (blue belt detail)
> > 38A Blue, Dark (red belt detail)
> > 23A Red, Light (polar regions)
> > 11 Yellow-Green (Ring division)
> > 47 Violet (Cassini's division)
> > 25 Red (High blue clouds)
> > 58A Green (White clouds)
>
> > The descriptions were assembled from product inserts and websites. The
> > table also includes the filters transmission factor and a more
> > detailed manufacturer effect description. Note that many filters with
> > low transmission factors will only work with larger apetures, i.e. -
> > eight or ten inches or greater. A fact not made consistently clear in
> > most product inserts.
>
> > There is a brief discussion of how planetary color wheels work at the
> > bottom of the web document.
>
> > - Enjoy - Canopus56
>
> Nice! Thanks for posting it
> Eric- Hide quoted text -
Nice! Very comprehensive in keeping with all of your
work.
Ben
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Date: 12 May 2007 13:49:28
From: Eric
Subject: Re: Table for selecting planetary color filters
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canopus56 wrote:
> I have prepared a table, by body, of the details that can be enhanced
> on planetary bodies by color filter number.
>
>
http://members.csolutions.net/fisherka/astronote/plan/pcfilt/PlanetaryColorFiltersTable.html
>
> The usual order of presentation in manufacturer product inserts is by
> color filter number. That order is difficult to use because to build a
> filter wheel for a particular body, all filter descriptions must be
> read.
>
> The table provided here is ordered by solar system body-effect-filter
> order. This allows one to look at a single planetary body at a time
> and to quickly decide what filters might be helpful.
>
> An example wheel load for Saturn, developed using the table, might
> be:
>
> 12 Yellow, Deep (blue belt detail)
> 38A Blue, Dark (red belt detail)
> 23A Red, Light (polar regions)
> 11 Yellow-Green (Ring division)
> 47 Violet (Cassini's division)
> 25 Red (High blue clouds)
> 58A Green (White clouds)
>
> The descriptions were assembled from product inserts and websites. The
> table also includes the filters transmission factor and a more
> detailed manufacturer effect description. Note that many filters with
> low transmission factors will only work with larger apetures, i.e. -
> eight or ten inches or greater. A fact not made consistently clear in
> most product inserts.
>
> There is a brief discussion of how planetary color wheels work at the
> bottom of the web document.
>
> - Enjoy - Canopus56
Nice! Thanks for posting it
Eric
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