A Cross Staff and a Quadrant are Instruments that measure Latitude.
Yes Christopher Columbus did use a sextant along with a compass, ampoletta, and a cross staff.
a cross staff
The cross staff was used to determine the vessels latitude by measuring the altitude of Polaris or the Sun.
The Sextant, The Nocturnal, The Astrolabe, The Quadrant Cross-staff and Back-staff, Latitude hook, Kamel Hope that helps you
Latitude
used to draw things
2010
used to draw things
compass, astrolabe cross-staff, back-staff
The papal staff is called a ferula. It is a staff which is topped by a cross. Bishops carry a staff with a curved top which is called a crozier.
the instruments in navigation are gps's, kamals, sextants, cross staff, back staff, mariners astrolabe, quadrant, and octants :)