angular
radius
edge
sextant
reads
moving
read
al Fakhrī
wall
moved
astronomical
mural
horizon
alidade
positions
angle
orientation
sixth
process
degrees
seconds
bodies
sight
object
aligning
index
along
compute
frame
meridian
graduations
marked
confirm
latitude
measuring
minutes
north-south
measurements
location
measure
aligned
flexural
60°
summer
lines
ecliptic
sets
precision
above
sun's
sights
winter
Iran
circle
observations
directly
distances
arc
stars
line
reading
obliquity
solstices
/pos
centred