.R.A. at Greenwich 9h 24m on Jan. 1st would be
| .R.A. | 18h 40m 21s |
| .C.P. | 1 33 |
| —————— | |
| 18h 41m 54s |
Now we must go back to some of the formulas we learned when discussing star time and apply them with the information we now have from the Nautical Almanac. If the G.M.T. on April 20th is 4h 16m 30s, what is the G.S.T. for the same moment? That is, when Greenwich is 4h 16m 30s from the sun, how far is Greenwich from the First Point of Aries? You remember the formula was G.S.T. = G.M.T. +
.R.A. +
.C.P.
| G.M.T. | 4h 16m 30s |
| .R.A. | 1 50 6 |
| .C.P. | 0 42 |
| —————— | |
| G.S.T. | 6h 07m 18s |
Suppose you were in Lo. 74° W. What would be the R.A.M. (L.S.T.)? You remember the formula for L.S.T. from G.S.T. was the same relatively as L.M.T. from G.M.T., i.e., L.S.T. = G.S.T. - W. Lo.
+ E. Lo,
Here it would be