feat: add MINUTES_IN_DAY to constants module in @observerly/astrometry

src/constants.ts

@@ -46,6 +46,15 @@ export const SECONDS_IN_DAY = 86400
 
 /*****************************************************************************************************************/
 
+/**
+ *
+ * The number of minutes in a mean solar day of 86,400 seconds.
+ *
+ */
+export const MINUTES_IN_DAY = 1440
+
+/*****************************************************************************************************************/
+
 export const SECONDS_IN_YEAR = 31556925.445
 
 /*****************************************************************************************************************/

src/index.ts

@@ -87,6 +87,7 @@ export {
   J1900,
   J1970,
   J2000,
+  MINUTES_IN_DAY,
   SECONDS_IN_DAY,
   SECONDS_IN_HOUR,
   SECONDS_IN_YEAR,

tests/constants.spec.ts

@@ -10,7 +10,24 @@ import { describe, expect, it } from 'vitest'
 
 /*****************************************************************************************************************/
 
-import { TWO_PI } from '../src/constants'
+import { MINUTES_IN_DAY, SECONDS_IN_DAY, TWO_PI } from '../src/constants'
+
+/*****************************************************************************************************************/
+
+describe('MINUTES_IN_DAY', () => {
+  it('should be defined', () => {
+    expect(MINUTES_IN_DAY).toBeDefined()
+  })
+
+  it('should be the number of minutes in a mean solar day', () => {
+    expect(MINUTES_IN_DAY).toBe(1440)
+    expect(MINUTES_IN_DAY).toBe(24 * 60)
+  })
+
+  it('should be the number of seconds in a day in minutes', () => {
+    expect(MINUTES_IN_DAY).toBe(SECONDS_IN_DAY / 60)
+  })
+})
 
 /*****************************************************************************************************************/