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1993-08-26
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S K Y M A P
---------------
Version 1.3
---------------
V E N D O R I N F O R M A T I O N
----------------------------------------
This file provides information for Shareware Distributors, Disk
Vendors, BBS Sysops and Computer Clubs who wish to distribute the
SKYMAP package.
-----------------------------------------------------------------
Part 1: Program Information:
-----------------------------------------------------------------
Program Name, Category:
-----------------------
SkyMap, Windows, Astronomy Application (Disk)
Preferred File Name For BBSs Etc:
_________________________________
SkyMap is a large package, and it may be desirable, especially on
a BBS, to distribute it as a number of archives. If this is done,
the preferred name is "SKYMPxxY.ZIP" where "xx" is the version number,
and "Y" is a letter A,B,C for the various files. For example, the
files of SkyMap v1.3, split into 3 would be SKYMP13A.ZIP, SKYMP13B.ZIP
and SKYMP13C.ZIP. Of course, other file name extensions are perfectly
acceptable when compression programs other than PKZIP are used.
Short Description:
------------------
SkyMap is a highly accurate "planetarium" for Windows 3.1. It can draw
a map of the sky, as seen from any place on Earth, for any date between
4000BC and 8000AD, displaying stars, planets, deep-sky objects,
constellation names and figures, and a whole lot more. Detailed information
about any object on a map can be obtained simply by clicking on it with the
mouse, and high quality charts can be printed on any printer supported by
Windows. Pictures of objects, in either GIF or BMP format can be associated
with objects and displayed, either manually or automatically.
Long Description:
-----------------
SkyMap v1.3 is a shareware "Planetarium" program for Microsoft Windows 3.1 or
later. It will display a map of the sky as seen from any point on Earth for
any date between 4000BC and 8000AD. Two different types of map can be drawn:
a "Horizon" map showing the observer's local horizon, and a "Sky Area" map
showing a detailed view of a small area of the sky. You can "zoom in" on a
map to a practically unlimited extent, and rapidly scroll around it.
There are many planetarium programs available today. Unlike some of these,
SkyMap makes no claims of blinding calculation speeds. Instead, what SkyMap
concentrates on is accuracy. SkyMap uses the most accurate methods available
to the author for all the calculations. This accuracy makes SkyMap equally
suited for both the novice astronomer who just wants to know "what's that
bright object up there?" and the serious amateur or professional astronomer
who wants a detailed "finder chart" for a faint galaxy. Examples of this
accuracy are:
- Planetary positions have a mean error of less than half a second of arc.
- Star positions are rigorously corrected for the effects of proper motion,
precession, aberration, and refraction. Planetary positions are corrected
for aberration and diurnal parallax.
SkyMap carries out its calculations in as efficient as manner as possible,
but it never compromises accuracy for the sake of speed. An increase in
speed can always be achieved by using a faster computer! Having said all
that, the speed is still reasonable; on the author's 33MHz 486-based PC for
example, the horizon map, with default settings, is computed and drawn in
about 5 seconds.
The following information can be displayed on a map:
Stars: SkyMap uses the SAO star catalog as the source of star data.
The shareware version of the program comes with a database of
15,925 stars down to magnitude 7.0; the registered version of
the program is supplied with a much larger star database, up to
and including the complete SAO catalog of 258,997 stars to
magnitude 9.5 or so. Stars can optionally be labelled with
proper names, Bayer letters, or Flamsteed numbers.
Constellations: Constellation names, figures, and official IAU boundaries
can all be displayed.
Planets: The Sun, Moon, and the planets Mercury to Neptune can be displayed,
labelled with their standard astronomical symbols. The Moon is
displayed with the correct phase and orientation.
Deep Sky Objects: The complete RNGC catalogue of non-stellar objects is
available. The user can select between the Messier
catalogue or the complete RNGC catalogue, and can apply
detailed selection criteria, such as "display globular
clusters brighter than magnitude 11".
All types of object can be switched on or off with the click of the mouse,
making it easy to see exactly the information you want, without being
flooded with unwanted information.
Detailed information about any object can be obtained simply by clicking the
mouse on it. In the case of planets, the displayed information includes
both positional (RA, Dec, Distance) and physical (Magnitude, phase,
light time, elongation, phase angle etc) information.
When you have a map as you want it, it can be printed on any type of printer
supported by Windows. The printed map is not simply a copy of the screen;
it is printed at the full resolution of the printer. Maps printed on a
laser printer compare favourably with high-quality star atlases such as
"Uranometria 2000". Maps can be printed in either black and white or
colour. If you have a colour printer you can select the colour of each
component of the map.
SkyMap can also display photographic images, supplied in the form of GIF or
Windows bitmap files. Thousands of such images are freely available on
bulletin boards and commercial information systems such as CompuServe and
BIX. This allows you to build up your own personal library of astronomical
photographs which, coupled with the map displays, really helps to bring the
sky to life. Images can either be displayed manually, or can be linked
with specific objects and displayed by simply clicking on the object on
the map.
System Requirements
-------------------
SkyMap will run on any computer supporting Windows 3.1, although a fast 386
or a 486-based computer is strongly recommended. A maths co-processor is
not essential, but again is recommended; SkyMap does a huge amount of
trigonometry, and use of a co-processor can speed the program up by a factor
of 10 or more!
SkyMap has been tested using the March beta of Windows NT, and no problems
were encountered.
For the display of photographic images, a video card capable of displaying
256 or more colours (simultaneously) is recommended. Images CAN be displayed
on a standard 16-colour VGA display, but will generally look pretty terrible!
Maps can be printed on any printer supported by Windows. Good quality maps
can be obtained even from a 9-pin dot matrix printer.
SkyMap's files require a total of 1.4MB of disk space.
Registration Information:
-------------------------
For full information about registering SkyMap, please refer to the separate
file "REGISTER.TXT".
Author/Publisher Information:
-----------------------------
SkyMap is written by:
Chris Marriott
9, Severn Road
Culcheth
Cheshire WA3 5ED
UK
E-mail addresses:
CompuServe: 100113,1140
Internet: chris@chrism.demon.co.uk
SkyMap is exclusively distributed in the USA and Canada by Shareable
Software Internation, Inc. Vendors in the USA or Canada should contact
Bill Dickson at the following address:
Bill Dickson
Shareable Software International, Inc
PO Box 59102
Schaumburg, IL 60159
USA
Also by voice or electronically as follows:
Phone: (708) 397 1221
Fax: (708) 397 0381
CompuServe: 76226,2652
Internet: 76226.2652@compuserve.com
-----------------------------------------------------------------
Part 2: Distribution Requirements
-----------------------------------------------------------------
ASP Associate (Disk Vendor) Member Information:
-----------------------------------------------
Vendors who are ASP Associate Members in good standing are hereby
given permission to distribute SkyMap. ASP Associate
Members (often called "ASP Approved Vendors") in good standing do
not need to request permission to distribute this package.
This permission is in effect until or unless we notify you
otherwise, in writing.
Other (Non-ASP) Disk Vendor Information:
----------------------------------------
Shareware Distributors and Disk Vendors who are not ASP Associate
Members, but who wish to distribute SkyMap must comply with
the following restrictions:
In order for us to ensure that only current versions are
distributed, we request that you contact Shareable Software International
before distributing any of our products.
You may not list any of our products in advertisements, catalogs,
or other literature which describes our products as "FREE
SOFTWARE". Shareware is "Try-Before-You-Buy" software, it is not
free.
Applying for ASP Associate Membership:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you would like to apply for ASP Associate Membership (to
become an ASP Approved Vendor), simply write to the following
address and request a Vendor Membership Application Package:
ASP Executive Director
545 Grover Road
Muskegon, MI 49442-9427
U.S.A.
or send a CompuServe message via CompuServe MAIL to ASP
Executive Director 72050,1433.
Please Help Us Serve You Better:
--------------------------------
We would appreciate copies of anything you print regarding
SkyMap. Please send us a copy of any reviews, articles,
catalog descriptions, or other information you print or
distribute regarding the SkyMap package. Thank you for
your time and assistance and for supporting the shareware
marketing concept.