home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Atari Forever 4
/
Atari Forever 4.zip
/
Atari Forever 4.iso
/
PD_THEMA
/
ASTRONOM
/
SKY_MAP.PD
/
SKY_MAP.TXT
< prev
Wrap
Text File
|
1998-03-14
|
1KB
|
22 lines
OPTIONS: MAGNITUDE AND COLOR INDEX:
* displaying a map of stars vm = visible magnitude (larger values
* finding a star correspond to dimmer stars);
* identifying a star ci = color index ("+" is blue, "-" red).
1560 brightest stars are
currently in the data file. HORIZON COORDINATES:
* elevation - measured from the horizon,
KEYBOARD: * azimuth - from north ("+" means east).
Keyboard equivalents are shown
aside of some menu items. EQUATORIAL COORDINATES:
* declination - from Earth's equator;
HELP: * right ascension - from the Spring
Explanations of all menu equinox (in hours and minutes; 1 hour
options are provided via is equivalent to 15 degrees).
the "Help" menu.
ECLIPTIC AND GALACTIC COORDINATES:
ST Systems Corporation expressed in latitude (measured from the
Aerospace Systems Division ecliptic plane or from the galactic
4400 Forbes Blvd. equator, respectively) and longitude
Lanham, MD 20706 - see any astronomy reference book.