Home Page ASTRON: Integrated Astro Navigation Software Astron V2.2. 2019 Nov 6
Almanac Data Watch Daylight
Year Month Day Hour Minute Second Corr (secs) Saving
 
GHA of GHA of Dec of GMT:
Body: Aries Ship's Time:
Observation
Windows
Apparent Position   Bearing (°T) Altitude (°)
Assumed Assumed Unidentified body?
Latitude Longitude        
Deg Deg
M.m M.m LHA of LHA of Calculated Calculated
Aries Azimuth (Zn) Altitude (Hc)
 
 
Sextant Altitude Corrections Observer Alt
Sextant Index SD HP
Altitude (Hs) Correction (IC)
Deg (Off Arc +ve) Eye Height (HoE) Limb Parallax Corr Observed
M.m M.m Altitude (Ho)
 
Azimuth and Intercept
Shore Dist (nm): Rise Mer. Passage Set
 

ASTRON SIGHT LOG AND PLOTTER

COG SOG
Day Hour Minute Second (Degs T) (Knots)


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ASTRON SIGHT PLANNER AND SKY CHART

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Year - +
Month - +
Day - +
Hour - +
Minute - +
Second
 
Set Current Time
 
Lat
Long
 
Sun Altitude
Moon Altitude
Moon Phase
 
 

ASTRON ALMANAC PAGE

Year - +
Month - +
Day - +
Hour - +
Minute -- ++
- +
Second -- ++
- +
 
Set Current Time
 
Lat
Long
 
Aries
SHA
GHA
LHA
 
This shade indicates
body is above horizon
 

USER CONFIGURABLE ITEMS


TYPE OF HORIZON Default SEA.
Set to ARTIFICIAL if you are using an artificial horizon.
TOO LIGHT SUN DEPRESSION Suggested value -3.0° (Mid Civil Twilight). Range 0.0° to -6.0°.
TOO DARK SUN DEPRESSION Suggested value -9.0° (Mid Nautical Twilight). Range -6.0° to -20.0°.
TYPE OF
START UP
Default LAST USED.
LAST USED: Start with date/time set to last used values.
PRESENT: Start with date/time set to present time.
SHOW EXTRA DECIMALS Suggested Value 0. Shows EXTRA decimal places. Range 0 to 3.
SHOW LUNAR
ARC DISTANCE
Default YES.
YES: Show Sextant Arc (LDs) between selected body and Moon.
NO: Don't show it. (On legend bar below Astron and Google Sight Plotters).
ENTER MSL
TEMPERATURE
AND PRESSURE
Default YES.
YES: Always enter MSL Temperature and Pressure.
NO: If Observer Alt > 0, enter AMBIENT Temperature and Pressure

STAR INFORMATION


ASTRON LUNARS PAGE


Altitude (Hs) Moon Moon Moon
Deg IC HoE Limb SD/Aug Corr Observed Cleared
M.m Altitude (Ho) Altitude (Hcl)
IC HoE Limb SD Corr Observed Cleared
Altitude (Hs) Altitude (Ho) Altitude (Hcl)

Sextant Arc (LDs) Moon ==== User Entered Values ====
Deg Limb Limb Ass Lat Ass Long
M.m
==== Lunar Revised Values ====
Calc Lat
Calc Long

ASTRON MERIDIAN PASSAGE PAGE

Correct for observer movement and
rate of change of body declination
COG
(degs T)
SOG
(knots)
Body Dec Rate
(arc mins/hour)
Time
Correction
Latitude Longitude
=== Corrected Meridian Passage Transit ===