You may fill out forms for all the objects you intend to view in a session, then use the forms to keep track of your sucess, or you may observe as you always have, and record your observations during or after your session. After you're done, you can view and print your observing records sorted by date or by object.

There's even a space where you can sketch your observations on the page, or place scans of your sketches after you're done. An "astrophoto" section for each observation lets astrophotographers keep track of their exposures as well.

When you want to use TSOL in the field, simply choose "Nightvision Mode" to switch to a vision-saving red display!

This is the Palm version. Windows and Mac OS versions are also available.

The RA Clock application maintains an internal sideral clock to eliminate the need of frequent re-calibration of the RA setting circle during an observing session. After an initial alignment, given the RA coordinate of an object in the sky the RA Clock application computes and automatically updates the RA coordinate that the setting circle on the mount should read so that the telescope points to the object.

The title above links to the English version installation file. You can get the Portuguese version here.

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 shouthern hemisphere; The whole date range of the Palm is supported (1904 to 2030); Accuracy: 0.1 degrees typical; Memory requirement: 144 KB min; Depends o­n the amount of installed options and data.

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

Objects: All planets, sun and moon ; 1600 or 9000 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)