Most if not all compact cameras have flashes with guide numbers from 10 to 12, which makes them useless for subjects that are 30-40 feet away, especially if they're ethereal.
I suggest you go with something with a large maximum aperture so you have as much light gathering capability as possible. Sony's RX100 II has an f/1.8-2.8 lens over a respectable zoom range that would probably work well for your purpose. It also has a relatively large 20MP sensor that will deliver images with lower noise than those from comparable cameras. It's $600.
- The lens is the thing.
- 'Full Frame' is the new 'Medium Format'.
- "One good test is worth a thousand expert opinions." - Tex Johnston, Boeing 707 test pilot.