Planetarium is an application for the Palm Connected Organizer that plots star charts and offers some unique, useful features for the beginning star gazer as well as for the professional astronomer.
It calculates the position of the sun, the moon, the planets, up to 9000 stars, hundreds of deep sky objects, comets and asteroids for any time and any geographical position and draws a sky map of any section of the sky with all 88 constellations. Stargazers can use it to help them find or identify objects in a clear night-time sky.
You can calculate twilight times, moon phases, and various astronomical information like coordinates, magnitude, distance, rise and set times and much more of the planets and all the other objects in the sky.
The useful time-increment function makes the program very interactive. You can use the Palm computer's hardware buttons to advance forward or backward in time stepwise. The time intervals are carefully chosen so that you can, for example, follow the annual path of a planet among the stars, including retrograde motion and conjunctions.
You can also use Planetarium as a compass when the sun or moon is visible. Line up the sun symbol in the compass display with the sun in the sky and your Palm shows you where north is.
Planetarium can also be used with a Telescope. Just tap an object on the star map and read off its Az/Alt or RA/Dec coordinates to set on the compass rings of your telescope. It is even simpler if you have a computerized Telescope that you can connect via the serial port of the Palm.
Features:
* Draws a sky map.
* Compass view for easy location of objects in the sky
* Can be used as a compass when the sun or the moon are visible.
* Connects to telescopes via the serial port.
* Comes with a location data base of 600 major cities.
* Can be used as world clock
* Observation log to take notes of your observations.
* Can be used in the northern and southern hemisphere.
* The whole date range of the Palm is supported (1904 to 2030)
* Accuracy: 0.1 degrees typical.
Objects
* All planets, sun and moon
* Up to 2.5 million stars (can be determined at installation)
* 88 constellations
* Deep sky objects data base expandable. (Data sets available for 110 Messier objects and 110 Caldwell objects, 280 double stars, 400 Herschel objects and over 1000 additional deep sky objects)
* Comets and asteroids (data base expandable)
Calculations
* RA/Dec, Az/Alt of any object
* Julian date and sidereal time
* Rise and set time of any object
* Twilight times
* Moon phases
* Solstices
* Jupiter's moons
* Angular size of Saturn's rings
* Phase and elongation of the planets
* Distance and magnitude of planets
* Angular size of the planets
* Graphical representation of the phase of the moon and the inner planets.
* Magnetic declination
* Meteor showers
What's New in This Release:
Bugfixes:
· There was a slight discrepancy between the position of the stars and the grid which could be noticed with high zoom levels.
· Jupiter's moons were drawn "updside down" with the default orientation, instead of what is seen with binoculars.
· There were problems with the hardware buttons of the T5.
· Many dialogs had this on the T3: In landscape mode with the T3 case open, open a dialog, close and open case, then the dialog was not redrawn properly.
· When one has snoozed an alarm, the crosshair was flashing very rapidly afterwards. This might also have happened at other occasions.
· On the right side of the screen when looking at the orbits of Jupiters moons the 'C' for Callisto was getting chopped off when Callisto was at its outmost position.
· When an object was selected the old behaviour was to keep that object centered. If the object would move out of the screen, it was recentered. This was annoying when moving around with the 5-way navigator. New behaviour is to release the selection when the object moves out of the screen.
New Features:
· The primary new feature is: Support for larger star data bases (down to m12). Planetarium has a built-in star data base with about 9000 stars (the Yale Bright Star Catalogue). New in this version is the possibility to install a data base with additional stars. There are several variants of star data bases differing in the limiting magnitude. Which one you want to install depends on your amount of free memory. The data bases were compiled with data from the Hipparcos and Tycho-2 catalogues. You can download them from the "Planetarium for PalmOS" website.
· In the tool bar there is a new widget that looks like this: [-]m6.5[+]. It is used to select the current magnitude limit for the stars. You can increase and decrease it with the [+] and [-] buttons. Each zoom level has its own magnitude limit. Tapping on the m6.5 text opens a new screen with all magnitude limits for each zoom level in one place. This new screen replaces the old "Custom Zoom" screen, and is also accessible via the "custom" entry in the zoom level ist. There are 3 more custom zooms, 6 in total now.
· The minimum field of view is now 0.2 degrees instead of 1 degree.
· Stars are drawn with their colors.
· The moon is drawn as a picture rather than a circle.
· Constellation boundaries can be drawn in the sky map.
· The center button of the 5-way-navigator toggles between "move around" and "time step" mode. In time step mode, the left and right button can now be used for zoom-in and zoom-out.
· The graphics for the positions of the satellites of Jupiter were 'too light', hard to see on the 'Stats' tab. Now there are bigger dots.
· In the "AZ" Enter-view-direction dialog, there are view direction circles like in sky view.
· Added 1 digit for RA coordinates.
· Center Lock mode: Tap the center icon, then the icon stays white on black and keeps the object centered when time stepping.
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Supported operating systems:
Palm OS 4.x, Palm OS 5.x
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