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Psion Database | 1995-03-19 | 4.6 KB | 122 lines |
- OPLDatabaseFile
- Astro3a
- WhatsUP...
- Ephemeris...
- Stars...
- QuickSet...
- Set City
- Set Time/Coord...
- Options...
- Save Preferences
- Load Preferences
- Glossary*
- 'Begins calculating whether the Sun,Moon-
- *or planets are above the horizon. Displays.
- +the position (if up) as cardinal points and+
- (whether the object is setting or rising.
- #Calculations are not interruptable.)
- "&Dialog enables the user to display an (
- "%objects' data over a period of time. $
- "!Supports Rise and Set, magnitude/
- phase and position.
- " Step time can vary from 1 minute
- to 365 days.
- "#Values are set to a more reasonable&
- "#value in the event that nothing is
- entered for step time.
- "#The calculation can be aborted once#
- " running by pressing the ESC key.
- ""NB The response to the ESC key is
- not immediate.%
- "A quick method of calculating the '
- $position of the Sun. Time is set to
- Current Psion time.%
- "A quick method of calculating the (
- %position of the Moon. Time is set to
- Current Psion time.%
- A"Displays a tableview of 78 stars. '
- A$Using the Options menu there are two!
- possible types of calculation.
- (i) Normal&
- A#Using the cursor keys and PgUp/PgDn'
- A$keys displays all 78 stars. Pressing$
- A!ENTER starts calculating for the !
- selected star and the display )
- A&switches to the normal display screen.
- A$Pressing any other key but PgUp/PgDn!
- or cursor keys aborts the Star)
- A&calculation and the menu's/help become
- available again.
- (ii) Tableview%
- A"First dialog presents calculation &
- A#options ie Position RA/LHA/GHA Azim*
- A'Altit or Rise/Set. Additionally 'Review%
- A"Last' is displayed if the user has'
- A$previously calculated a set of stars
- data.
- A'After all 78 stars have been displayed,&
- A#use PgUp/PgDn keys to display pages
- A of stars.
- A$Pressing any other key but PgUp/PgDn"
- or cursor keys aborts the Star *
- A'calculation and the menu's/help becomes
- available again.,
- )The dialog presents the user with menu of,
- )objects to display. The time calculations(
- %are based on the current Psion time. -
- *It is possible to set Daylight saving from
- here.*
- 'First dialogue box allows you to enter )
- &coordinates for latitude/longitude and*
- 'a new location. Pressing 'Enter' stores$
- !these new coords and pops up the
- Time dialog.
- Pressing escape aborts.
- !Time box defaults to 1/1/1970 and&
- #any date upto 2010 can be entered. '
- $This new date is stored for the next
- time you use it.
- (Use TAB key for a calendar ala 'Agenda'
- application.'
- $Toggle for Rise and Set calculations
- Coordinate system to display.
- Options are 1
- . GHA Greenwich Hour angle-
- * LHA Local Hour Angle+
- ( RA Right Ascension$
- !Running Clock Displays either0
- - Psion Time or UTC time.#
- Twilight Choose between Civil0
- - Nautical or Astronomical'
- $ Twilight times.%
- "Saves the current settings of the "
- option screen and the Latitude/'
- $Longitude/City/TimeZone and whether
- daylight saving is in use.(
- %Loads those settings previously saved
- to RAM
- Say Goodbye.
- O/2Azimuth: Angle round from the North point on @
- O/= the horizon like NESW (90deg = East)5
- O/2Ephemeris: A table of predictions of astronomical #
- O/ events.;
- O/8UJD: Julian Day. Number of days that have @
- O/= elapsed since 12:00 Jan 1st,4713 BC.6
- O/3UTC: Universal Time coordinated.(GMT);
- O/8Dec: Declination. Used in the equatorial >
- O/; coordinate system. Angle measured 9
- O/6 perpendicular to the equator.'
- O/$Magnitude: Unit defined on log scale;
- O/8 which measures brightness of a >
- O/; celestial object. A value of -1 is7
- O/4 brighter than a value of 0.6
- O/3Phase: Area of disc which is illuminated. <
- O/9 ie full moon=1 (or percent 100%)2
- O//Right Asc: RA (equatorial coordinates) Angle <
- O/9 measured round from the 1st point@
- O/= of Aries in the plane of the equator./
- O/,LST,GST: Local & Greenwich sidereal Time =
- O/: measured with respect to apparent +
- O/( motion of stars.8
- O/5Twilight: Semi-darkness before and after sunset.
-