Over washington street, hanover, ma. we first seen it when we were driving in car south near shaws market @ 4-4:15-ish. my daughter sydney pointed it out saying “it looks like someone lost a bunch of balloons” then after a half hour later 4;45 we were coming back north near east street and she said it was still there. i pulled into the auto mall across from western auto’s we got out and we watched it for about ten minutes. it seemed to be a diamond shape, black and stayed in the same place 500 to 1000 feet above us for 5 minutes and then slowly rose upward to the east till i lost track of it. it was snowing lightly and it wasn’t making any sound, so i don’t think it was a drone. it did appear to be rotating slowly and we both thought we saw a thin line below it like a string, but if it was balloons it would have drifted away faster and it certainly wouldn’t have been in the same area for a half hour.