الإضاءة هي حادثة التدفق الكلي المضيئة على سطح لكل وحدة.تم قياسه في لوكس (LX).
1 ly = 878,948,346,339,650.8 fc
1 fc = 1.1377e-15 ly
مثال:
تحويل 15 سنة ضوئية إلى footcandle:
15 ly = 13,184,225,195,094,762 fc
| سنة ضوئية | footcandle |
|---|---|
| 0.01 ly | 8,789,483,463,396.508 fc |
| 0.1 ly | 87,894,834,633,965.08 fc |
| 1 ly | 878,948,346,339,650.8 fc |
| 2 ly | 1,757,896,692,679,301.5 fc |
| 3 ly | 2,636,845,039,018,952 fc |
| 5 ly | 4,394,741,731,698,254 fc |
| 10 ly | 8,789,483,463,396,508 fc |
| 20 ly | 17,578,966,926,793,016 fc |
| 30 ly | 26,368,450,390,189,524 fc |
| 40 ly | 35,157,933,853,586,030 fc |
| 50 ly | 43,947,417,316,982,536 fc |
| 60 ly | 52,736,900,780,379,050 fc |
| 70 ly | 61,526,384,243,775,550 fc |
| 80 ly | 70,315,867,707,172,060 fc |
| 90 ly | 79,105,351,170,568,560 fc |
| 100 ly | 87,894,834,633,965,070 fc |
| 250 ly | 219,737,086,584,912,670 fc |
| 500 ly | 439,474,173,169,825,340 fc |
| 750 ly | 659,211,259,754,738,000 fc |
| 1000 ly | 878,948,346,339,650,700 fc |
| 10000 ly | 8,789,483,463,396,508,000 fc |
| 100000 ly | 87,894,834,633,965,080,000 fc |
إنايام