 |
| Menu |
|
| |
| |
|
| Glossary |
|
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| | 113 to 117 of 227 glossary terms |
| magnetic compass: instrument indicating directions by a magnetic needle, see article on the compass.
| magnetic deviation: the angle between geographical north and the direction indicated by a compass needle.
| magnitudes: numbers in a scale of the relative brightnesses of the stars, 1 being the brightest.
| mariner's astrolabe: altitude-measuring instrument for finding latitude at sea, having a heavy brass or bronze ring, suspended by a shackle and ring, with a degree scale and a centrally-pivoted alidade.
| mater: part of an astrolabe, see article on the astrolabe.
|
|
