Light Pollution
The problem is two-fold: the number of lights in the background (light pollution), and secondly, the height of the anchor light on a mast. With the increase in population and the increase in the use of lights on shore, and brighter lights on shore, it’s becoming increasingly difficult to see lights on boats, both anchor lights and running lights. Even navigation lights on buoys and channel markers. Surprisingly, another problem is just the opposite – in an anchorage where there is little or no light pollution – some remote anchorage – one can see the stars in the night sky. The high masthead light can wind up looking like a large star!Secondly, the masts on today’s boats are much higher for the same length than they were a few decades ago. It wasn’t too many decades ago that gaff-rigged boats were fairly common but rig styles have moved toward high-aspect and the boats that people cruise in have increased in size, the combination of which has really pushed the anchor light skyward.One solution to these problems is to have a second light that shines downward onto the deck. There is no requirement for this, which is good (no wattage or arduous location specified) and bad, but it would really aid in being seen. A low-powered LED light could do wonders in making one’s boat visible in an anchorage at night. The “cost” in Amp-Hours would be minimal and be more than offset by the additional safety it would provide.I don't know how many times I've entered an anchorage at night and had a difficult time spotting the other boats - it's been a lot. I still have memories (nightmares?) about going into Bull Harbour (north end of Vancouver Island) at 2 AM in pea soup fog. "Most" boats had their anchor lights on (not all) and visability was in boat lengths. Ugh!