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An arcsecond (arsec) or second of arc is 1/60 of an arcminute, 1/3600 of a degree, 1/1296000 of a turn, and π/648000 (about 1/206265) of a radian.
In relation to the base unit of [angle] => (radians), 1 Hour Angles (HA) is equal to 0.26179938779 radians, while 1 Arcseconds (arcsec) = 4.848137E-6 radians.| 1 Hour Angles | to common angle units |
|---|---|
| 1 HA | = 0.26179938779 radians (rad) |
| 1 HA | = 261.79938779 milliradians (mrad/mil) |
| 1 HA | = 266.66658632358 angular mils (µ mil) |
| 1 HA | = 14.999999414513 degrees (°deg) |
| 1 HA | = 16.666666950387 gradians (grad) |
| 1 HA | = 900.00064557493 arcminutes (arcmin) |
| 1 HA | = 53999.997894036 arcseconds (arcsec) |
| 1 HA | = 0.24999989284739 sextants (60°) |
| 1 HA | = 0.49999883076776 signs (30°) |
| 1 HA | = 0.041666635545002 turns (t) |
| Hour Angles | to Arcseconds (table conversion) |
|---|---|
| 1 HA | = 53999.997894036 arcsec |
| 2 HA | = 107999.99578807 arcsec |
| 3 HA | = 161999.99368211 arcsec |
| 4 HA | = 215999.99157615 arcsec |
| 5 HA | = 269999.98947018 arcsec |
| 6 HA | = 323999.98736422 arcsec |
| 7 HA | = 377999.98525825 arcsec |
| 8 HA | = 431999.98315229 arcsec |
| 9 HA | = 485999.98104633 arcsec |
| 10 HA | = 539999.97894036 arcsec |
| 20 HA | = 1079999.9578807 arcsec |
| 30 HA | = 1619999.9368211 arcsec |
| 40 HA | = 2159999.9157615 arcsec |
| 50 HA | = 2699999.8947018 arcsec |
| 60 HA | = 3239999.8736422 arcsec |
| 70 HA | = 3779999.8525825 arcsec |
| 80 HA | = 4319999.8315229 arcsec |
| 90 HA | = 4859999.8104633 arcsec |
| 100 HA | = 5399999.7894036 arcsec |
| 200 HA | = 10799999.578807 arcsec |
| 300 HA | = 16199999.368211 arcsec |
| 400 HA | = 21599999.157615 arcsec |
| 500 HA | = 26999998.947018 arcsec |
| 600 HA | = 32399998.736422 arcsec |
| 700 HA | = 37799998.525825 arcsec |
| 800 HA | = 43199998.315229 arcsec |
| 900 HA | = 48599998.104633 arcsec |
| 1000 HA | = 53999997.894036 arcsec |
| 2000 HA | = 107999995.78807 arcsec |
| 4000 HA | = 215999991.57615 arcsec |
| 5000 HA | = 269999989.47018 arcsec |
| 7500 HA | = 404999984.20527 arcsec |
| 10000 HA | = 539999978.94036 arcsec |
| 25000 HA | = 1349999947.3509 arcsec |
| 50000 HA | = 2699999894.7018 arcsec |
| 100000 HA | = 5399999789.4036 arcsec |
| 1000000 HA | = 53999997894.036 arcsec |
| 1000000000 HA | = 53999997894036 arcsec |