6.3.3.2 Tic mark labels

text label-text at rectascension declination tics (rectascension | declination) step ;

Command

With the keyword rectascension, one rectascension circle gets tic marks, analogously with declination. The celestial position after `at' denotes the starting point of the labelling, and step is the step skip (in hours or degrees respectively) for the subsequent tic mark labels.

The label should contain one of the following special expressions:

#1

Rectascension in hours.

#2

Declination in degrees.

#3

Rectascension in integer hours (truncated, not rounded).

#4

Rectascension fraction of hour in minutes (truncated, not rounded).

#5

Declination in rounded integer degrees.

For further options see Arbitrary text. Tic mark labels can also be flexes, see Flexes.