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STAR ATLAS V0.06B1
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Star Atlas v-0.06b1
Written by Youhei Morita using THINK C 4.0.
This program draws a map of a region of the sky. Unlike the preceding
application StarChart (*), it conforms to the Apple standard menu system
with reverted black menu bar. (Otherwise you will find the white menu
very disturbing...) It runs with MultiFinder. I confirmed it runs on MacPlus,
SE, SE/30 and II with System 6.0.2 or later.
To run this program, an accompanied data file "star.catalog" should be
put in the same folder. This data file is converted from David Palmer's
"stars.cart", which he claims as public domain and contains the position,
magnitude, name and color of 1573 stars. To change the center position
of the Atlas, use R.A. (Right Ascension) and Decl. (Declination) menus.
You can also change the center position by clicking a portion of the Star
Atlas window. Zoom menu changes the scale of the Atlas.
Star names can be displayed on the screen by checking "Display star
names brigher than..." option in the "Preference..." dialog box. They are
shown as abbreviated composites of their Greek prefixes and the
constellation names. For example, "alpCMA" is CMA alpha (Sirius, aka
Dog Star), and "betORI" is ORI beta (Rigel, Orion).
Window size may be changed by dragging the grow icon at the lower
right corner of the Atlas window although the grow icon itself is not visible.
You will notice a change in the shape of mouse cursor from cross to arrow
when you are in the grow box. You can also move the window by dragging
a pixel-width white line just below the menu bar. Clicking in the zoom box
in the upper right corner of the Atlas window will put the window back to the
original position.
Drawing a map takes time on old machines like Plus or SE (typically 30
sec for poloar maps, namely Decl. = +/-90í and +/-60í, 10 sec for
other maps), so please be patient!
I wrote this program as a first practice of using Macintosh Toolbox
routines. It can be freely distributed as long as *you* don't make money
out of it. Certain portion of the copyright of this software belongs to
Symantec Corp. Future plan is to calculate and display the planets and
comets at any given date and time. Please send your comments and
suggestions (no support guaranteed though) to:
morita@jpnkekvx (Bitnet)
morita@fnal.fnal.gov (Internet)
Enjoy!
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(*) StarChart is written by David Palmer and is available on Info-mac
archives.
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Changes from version 0.05:
- Support star name display.
- Atlas scale may now be disabled via "Preferences..." dialog box.
Changes from version 0.04:
- Support large screen monitor.
- Support window zoom box and grow box.
- Support Decl. = +/- 60í map.
- Quick window update when switching applications on MultiFinder.
- Fixed a bug of displaying a phony star at RA=0h00m, Decl.=0í.
Changes from version 0.03:
- Polar maps are supported.
- Changed star.catalog data format.