My Palm stuff

Here you will find my small contribution to the PalmOS comunity.

Palm and astronomy

Catalogs for the Planetarium

I have converted o few DSO catalogs for use with the excellent Planetarium PalmOS program. I wanted to fit as much information about the object as possible into a 'name' field so it would be immediately available when the object is selected (you don't have to hit the (i) button). The Dreyer descriptive code (a palmdoc version) was ideal for this as it provides a quite good visual description in less then 50 characters. It is a bit hard to understand at first, but very descriptive and intuitive when you get used to it. Even though I tried to make the object descriptions as short as possible, most of them still can't fit on the main Planetarium display. This can be solved by using a more condensed font (such as Handera22B) with the appropriate Hackmaster hack (highly recommended!).

The result is a dreyer catalog consisting of 903 NGC (non Messier) objects brighter then 12mag and with declination higher then -30 degrees. Galaxy icon (type) is based on it's tilt: round ones (viewed from 'the top') are represented by a round, spiral galaxy icon, extremely elongated by tilted elliptical galaxy icon and the rest by a horizontal elliptical galaxy. The tilt (and size) information was taken from the Saguaro Astronomy Club Database (ver 6.0) based catalog. The 'NGC' prefix was removed from the object's name to save space.

I also converted two other (smaller) SAC object lists: SAC best 110 NGC and SAC best 110 non-NGC. All objects have short descriptions.
For your convenience, you can download my UserObjsDB that includes Messier, Caldwell, Double Star, binocular, SAC NGC, SAC non-NGC and Dreyer catalogs. Don't forget to export any personal objects prior to installing this file.

Databases

I made a pilot-DB compatibile database of 1660 brighter NGC objects, together with their full Dreyer and POSS descriptions. Object type, magnitude and constelation are also provided.

by Domjan Svilkovic (dsvilko AT fizika DOT org)