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- Digi-Tech StarView 1.0.09 of 18Jan88
-
- (c)1988 Digi-Tech Consultants. All Rights Reserved.
-
- Invoke with StarView [path]
- where path is the optional drive and/or directory containing the
- device drivers and data files.
-
- StarView is a non-commercial product of Digi-Tech Consultants.
- You may use it freely, and distribute copies to others as long
- as no fee of any kind is charged and the program and supplied
- data files remain unmodified.
-
- A contribution of $30 would be appreciated, and entitles you to
- suggest improvements and point out errors in the software.
-
- Corporate usage or distribution with a product requires a license.
-
- Brian McMillin
- Digi-Tech Consultants
- P. O. Box 12144
- Dallas, TX 75225
-
- The use of a mouse is recommended.
- Change parameters by clicking or dragging the bar graphs.
-
- Reposition the display by dragging in the starfield:
- Up and Down change Declination.
- Left and Right change Right Ascension.
-
- Position the cursor near a star to see its identification.
-
- Use Up and Down arrow keys to change declination.
- Use Left and Right arrow keys to change Right Ascension.
- Ins and Del rotate the display.
- Home and End zoom in and out on the display.
- PgUp and PgDn change the limiting magnitude displayed.
-
- Letters select a constellation (highlighted by blinking).
- + and - step through alphabetized constellation abbreviations.
- Space clears the selected constellation.
- f1 inverts the image f2 displays this Help info
- f3 selects clock drive f4 selects time rate
- f5 change display colors f6 display Mag or Spec Class
- f7 select spectral classes f8 select coordinate Epoch
- f9 set observer info f10 toggles drive on/off
-
- This version of StarView implements display of objects in
- the solar system. These objects can be observed at any
- time or date by setting the observer info (f9).
-
- The displayed date and time can be set to the current local
- time by pressing Alt-f10.
-
- The displayed coordinates are either for the Epoch of Date, or
- Epoch 2000.0. Toggle with f8.
-
- A tabular display of the positions of solar system objects may
- be obtained by pressing Alt-f9.
-
- The horizon at your location will also be visible as a short
- line in the field. "Below Horizon" means the center of the
- field is below the horizon.
-
-
- You may center the display on any object by pressing Enter
- and typing in any of the following identifications:
-
- name common name or abbreviation (SUN, VEGA)
- nn XXX Flamsteed Number and Constellation
- ggg XXX Greek letter abbreviation and Constellation
- HR=nnnn Yale Catalog Number
- C=XXX Just a Constellation designator
- RA=hh.hh Change Right Ascension to decimal hours
- DEC=dd.dd Change Declination to decimal degrees
-
- In addition, you can directly set some display parameters:
-
- ROT=dd.dd Change display rotation to decimal degrees
- F=nn.n sets the field width
- M=nn.n sets the limiting magnitude of the display
- LAT=dd.dd Observer's Geographic Latitude (degrees)
- LON=dd.dd Observer's Geographic Longitude (degrees)
- ALT=nn.nn Observer's Altitude above sea level (meters)
- ddMMMyy Display Date (e.g. 12MAR88 or 00JAN2000)
- hh:mm:ss Display Time (must be hours, mins and secs)
- hh:mm:ssU Display Universal Time (must have U on the end)
-
- The first time you run StarView, you will see the graphics
- selection screen and the observer information screen.
- You should enter selections for screen mode and colors,
- as well as you latitude, longitude and time zone.
-
- This information will be retained in the file StarView.OBS.
-
- You can recall the Graphics setup screen by pressing f5.
-
- You can change your observer parameters by pressing f9.
-
- The observer screen also allows you to enter a specific time
- and date for your observations.
-
- An automatic drive feature is included. This simulates the
- view in an actual telescope with a fixed mount, or an
- equatorial mount with R. A. clock drive.
-
- Select a drive rate with f3.
-
- Toggle the drive ON and OFF with f10. If the drive is OFF
- time will not change automatically.
-
- If the drive is Locked and ON, the stars will move at the rate
- of the Earth's rotation.
-
- If the drive is Solar Rate ON, the stars will move at the rate
- of the Sun.
-
- Sidereal Rate will change only the positions of the horizon and
- solar system objects; the stars will remain fixed.
-
- Lunar Rate ON will move the stars at the rate of the moon.
-
- Select a time multiplier with f4. Choices are real time,
- as well as 10, 100 and 1000 times normal.
-
- The following files are required for operation of StarView:
- StarView.EXE executable program
- StarView.IDs Bayer and/or Flamsteed IDs (text)
- StarView.NAM Common names of certain stars (text)
- StarView.SIN Trig Table (binary)
- StarView.BIN Star Coordinates, Magnitude and Spectral Type
- StarView.MAX Number of valid objects in StarView.BIN
-
- In addition, the following graphics device drivers are supplied.
- ATT.BGI AT&T 400 line graphics
- CGA.BGI IBM Color Graphics Adapter
- EGAVGA.BGI IBM EGA and VGA
- HERC.BGI Hercules Graphics Adapter
- PC3270.BGI IBM 3270/PC Driver
-
- All files must be in the path specified in the command line.
- This version of StarView requires approximately 400 Kb of memory.
-
- The database for this program is derived from the 4th edition
- of the Yale Bright Star Catalog and contains 9096 stars.
- Coordinates are Epoch 2000.0.
-
- No non-stellar fixed objects are included in this version.
-
- You may add your own data to the list of fixed objects
- used by StarView. The File StarView.ADD is a text file which
- will be read after all the standard objects are loaded.
-
- The format of each line in StarView.ADD is as follows:
-
- Right Ascension in decimal hours
- Declination in decimal degrees
- Magnitude in decimal
- Name optional 15 byte text designation
-
- The text is free format, but values for all three numbers
- are required on each line.
-
- There are limitations on the number of objects you can add,
- based on compile-time declarations and the number of objects
- in the distribution database. You should be able to specify
- more than 500 objects with names without problems.
-
- To make more room for your own objects, make the value in
- StarView.MAX smaller (fewer objects in standard catalog).
-
- Be sure to use Epoch 2000.0 coordinates in your data.
-
- StarView contains information on the SUN, MOON and ZENITH (for
- horizon display). Orbital elements for the planets are contained
- in the file StarView.ELE. You can add your own data for
- planets, comets, asteroids, etc. to those listed.
-
- The format of each object in StarView.ELE is as follows:
-
- Name Up to 15 character name for the object
- Epoch in decimal Years
- Period in decimal Years
- Eccentricity in decimal
- Longitude at Epoch in decimal degrees
- Longitude of Ascending Node in decimal degrees
- Inclination in decimal degrees
- Semi-Major Axis in Astronomical Units
- Diameter at 1 A.U. in arc seconds
- Brightness in A.U. squared
-