Went out on back porch to smoke, while talking on cell phone, looked up, saw a round Sphere, I thought it was a large Star or a PlanetI always stargaze when on the porch at night. I thought it was a Planet or Star, until it moved in a strange manner.It was a White Sphere & it was stationary, then began to move, I thought it was my new glasses. I noticed it moved very slowly, in a trajectory unlike conventional aircraft or satellite. It was to my North at about 60 degrees from the horizon, when it began to move West, then it stopped.It began to move again, & changed directions while in flight. Then stopped again. I stepped inside to summon my husband. It was stationary for 30 seconds, then it changed direction to North by West at a slow but varying speed, slowing down suddenly then speeding up then zigzagging in elevation until it disappeared from our sight in a North by NorthWest direction.My husband estimated the object was no more than 40 miles from us in distance, no more than 100,000 feet Above Ground Level.I felt normal before the sighting, but during & after I was elated. Afterwards, i felt it was a oddly coincidental, because my Husband was helping my niece assemble a plastic model of a transparent, Alien Grey, like described in the Roswell reports & had just finished assembling it when I call to him.My Husband said out loud, "You better get out of my space NOW!" We both lost sight of the Sphere in the distance & cloud cover.End of Report.