PC-Sky, the first true sky simulation program for the IBM PC, is for anyone
with an interest in exploring the night sky, from the casual backyard
observer to the serious amateur. While other programs simulate a
planetarium, cluttering and congesting the screen with lines and symbols,
PC-Sly accurately displays the sky in all of it's beauty, including
colorful sunsets and stars that twinkle.

PC-Sky has three natural viewing modes. The naked-eye view displays a 90 x
60 degree portion of the sky. This view can be panned either up, down,
left, or right by moving the cursor and clicking once--no pull down menus
to hassle with. The binocular view can be brought up at any place in the
sky simply by positioning the cursor on an object and clicking. The
simulated binocular view can be panned in any direction in a flash. Moving
into the telescope view is just as easy. Telescope views include accurate
simulations of planets and their satellites; galaxies, clusters, nebulae,
double stars, and variable stars.

John Mosley, software reviewer, Sky & Telescope June 1993:

"PC-Sky is a truly amazing program. It's not only easy to use, it's fun. I
heartily recommend it to armchair astronomers as well as to observers."

Dave Bruning, software reviewer, Astronomy August 1993:

"Double and variable star observers will find this is the first commercial
program to provide both textual and graphical information about thousands
of their favorite objects. PC-Sly will help beginning observers better
understand what they'll see through their binoculars and telescopes and
help them plan star-hopping paths. And many experienced observers may find
they prefer this display format to the atlas-like appearance of many
planetarium programs."

PC-Sky Characteristics:

All stars visible in binoculars (nearly 27,000 stars) are simulated for at
least 4000 years into the past and future. Stars can be found by: common
names, Bayer, Flamsteed, HD, SAO, or variable-star identification.

Information like RA, Dec, altitude, azimuth, spectral type, rising,
setting, and transit times, as well as cross referenced identifications
can easily be displayed for any object.

Over 200 selected star fields containing simulated galaxies, nebulae,
clusters, and stars down to 16th magnitude in telescopes from 6 to 24
inches. Object descriptions and observing notes are provided.

All planets (except Pluto) and all of their satellites which are visible in
a 24" telescope are simulated.

Over 6500 double-star systems are depicted, including over 400 long-period
binaries. Orbit diagrams are provided.

Over 1000 Variable stars, complete with typical light curves, estimated
current magnitude, time to next minimum or maximum, and a
description/explanation of the cause of variability.

Time-step animations of eclipses, conjunctions, planet phases, planetary
satellites, and long-period binary stars.

Up to 800 star-like objects can be displayed from an external file.

System Requirements: PC-286/386/486, 640K RAM, VGA/SVGA graphics, HD floppy
drive, and a hard drive. Mouse and math coprocessor recommended, but not
required.

CapellaSoft
PO Box 3964, La Mesa, CA 91944
619-460-8265

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 From the 'New Product Information' Electronic News Service
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