It was the location that was important. Like Mac, I piled on some vegetation in the middle of the float, too. Used under cover, they worked well during both fall and spring, but in the spring you have more rats traveling so production should be higher then. I do feel using them in places that afford protection for the muskrats from raptors work best.
Planetary Nebula are the outer layers of a star that are lost when the star changes from a red giant to a white dwarf. A star is a luminous globe of gas producing its own heat and light by nuclear reactions (nuclear fusion). They are born from nebulae and consist mostly of hydrogen and helium gas.
At that instant, the core ignites, and the new star is born. Meanwhile, in the disk, clumps of material have been forming, which are the seeds of new planets. These seeds sweep up material in the disk in a process called accretion, forming the planets of a new solar system. Once the star has started nuclear fusion, the heat and wind from the infant star begin to blast the gas and dust away, creating a cavity in the cloud.