It's tough to identify the constellations when there is partial cloud cover -- so I'd like to practice this skill with a game. Does such a game exist? Here is how I envision it:
-You are shown a large portion of the sky (maybe 1/3 to 1/6 of the sky that would be visible at some unknown time)
-You draw a lasso around any group of stars - a selection list (alphabetical) of all the constellations appears (or a limited list according to settings, e.g. all constellations visible from X degrees north latitude) - if you choose correctly, the lassoed stars turn green.
-You continue in that way, selecting more star groups and identifying the constellation, until some required percent of the screen has been correctly identified.
-Different levels of difficulty are provided by varying the percent cloud cover. There would be a "beginners" stage without any clouds. On the hardest levels, the only way to figure things out is if you can recognize a constellation from a small portion visible. I would love to have that skill!
There could be options to choose whether to provide additional clues, such as:
-Clouds are either black (indistinguishable from empty sky) or gray (so you can tell where the "hidden stars" must be located
-Viewing direction randomized, vs. direction known with N/S/E/W indicated
-Unknown time/season vs. known
-Planets can be included to confuse, or possibly help you (since they help you see where the ecliptic is)
I imagine it would be sort of analogous to "name that tune" -- those who really know their pop tunes can identify a song from just a few notes; this game would show the same kind of skill for those who really know their constellations well.
Is there anything like this in existence? I guess maybe it could be called "Cloudy Nights"! (Or maybe not!)