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PD_THEMA
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ASTRONOM
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SKY_MAP.PD
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SKY_MAP.HLP
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1998-03-14
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QUIT: Do you want to exit
this program?
---
HELP ON: each click on a menu
item will display an explana-
tory message before performing
the requested action.
---
HELP OFF: disables the HELP ON
function - no explanatory
messages will be displayed.
---
IDENTIFY: clicking the mouse
on a star will display its
data (ID, visual magnitude,
color index, and coordinates).
---
CENTER: clicking the mouse in
the map area will define the
next map projection center
(rounded to the nearest grid
node).
---
POINT: clicking the mouse
on a point will display its
coordinates.
---
REDRAW: redraws the map with
all the settings (frame,
projection, magnitude range,
scale and projection center)
as currently set.
---
FLIP: redraws the map with
the center opposite to the
one currently set, and
with the scale value not
greater than 2.
---
FIND: inputs the 6-character
star ID (an asterisk serves as
a wild character, replacing
any other) and finds the
brightest star matching it.
---
FIND NEXT: finds the next star
matching the last defined ID.
---
SCALE: re-defines the map
scale; the value of 1 corres-
ponds to the whole hemisphere
(or sphere) filling the win-
dow as tightly as possible.
---
EQUATORIAL: re-defines the
coordinate system (for
subsequent maps) to
δ - declination,
α - right ascension.
---
ECLIPTIC: re-defines the coor-
dinate system (for subsequent
maps) to
β - celestial latitude,
ג - celestial longitude.
---
GALACTIC: re-defines the coor-
dinate system (for subsequent
maps) to
b - galactic latitude,
l - galactic longitude.
---
HORIZON: re-defines the coor-
dinate system (for subsequent
maps) to
H - altitude,
A - azimuth.
---
MAGNITUDE: only stars with
magnitudes from the indicated
range will be mapped by the
subsequent REDRAW actions (and
made accessible for FIND).
---
STEREOGRAPHIC: this projection
will be used for subsequent
maps. Properties: not more
than one hemisphere shown at a
time; no angular distortions.
---
AITOFF: this projection will
be used for subsequent maps.
Properties: whole sphere can
be displayed at once, no area
distortions.
---
CONST.NAMES: displays the list
of constellation abbreviations
together with their Latin and
English names.
---
STAR NAMES: displays the list
of stars which were given
individual names.
---