HELMSMAN
LEARN GALLERY
SIGN UP
TIME & ANGLE MEASUREMENT
02
MEASUREMENT ON THE CELESTIAL SPHERE
01
DRAWING ASTRONOMICAL FIGURES
05
ALTITUDES AND LATITUDE BY MERIDIAN ALTITUDE
04
STELLAR OBSERVATIONS
08
PLOTTING POSITION LINES
07
BASIC METEOROLOGY
11
PRACTICAL ASTRO-NAVIGATION
10
THE MATHEMATICS OF NAVIGATION
14
OCEAN NAVIGATION & PASSAGE PLANNING
13
OCEAN COMMUNICATIONS
17
THE MERCATOR CHART AND MERCATOR SAILING
16
FORMS
AND
TABLES
Logout
Login
THE SEXTANT AND THE MEASUREMENT OF ALTITUDE
03
POSITION LINE BY THE TABULAR METHOD
06
SPECIAL OBSERVATIONS: THE MOON - POLARIS AZIMUTHS & AMPLITUDES
09
TIDAL PREDICTIONS IN THE INDIAN & PACIFIC OCEANS
12
THE RHUMB LINE SAILINGS & THE TRAVERSE TABLE
15
CALCULATOR AND SATELLITE NAVIGATION
18
SELF
ASSESSMENT
our learn
About me +
get in touch
Contact us +
what's trending
Read our blog +
© 2017 . Sidaerum. All Rights Reserved
