| Distance | 1.6 | A.U. | ||||
| or | 239,356,593 | km | ||||
| Beam divirgence | 0.05 | mRad | ||||
| or | 0.00005 | Rad | ||||
| Exposure field, diameter | 11,968 | km | ||||
| Sphere area formula: | V=4*pi*R*R | |||||
| Like distance | 30.86048645 | km | ||||
| Imagine a laser, placed at the distance of 1.6 Astronomical Units from you. | ||||||
| Laser is pointing at you; you are trying to detect it with telescope. | ||||||
| It will be as hard for you to detect this laser, as the light with the same intencity, placed 30.9 km away. | ||||||