3/24/84 Newburgh NY circle 25min One large mass. Longer than a football field. Saw it for 25min.

In front of a friends house we saw a one large mass. In the sky approx one 1/4 of a mile from where we were standing. It was 200ft in the air. And looked longer than a football field. It made no noise. And it was going slow. During the duration of us observing it. It did not look like any plane i ever saw. I lived near an airforce base. So i know the thing we saw that night wasn't a plane nor helicopter!When it was moving the best way i can describe it. If you took a piece a graph paper and a pencil and a ruler. And connected the lines on the paper that's how it was flying. It turned on its lights white lights about 10 mins into us watching it. Then it shut off its lights. Then it glowed solid green. The shape of a cigar. Then it slowly went out of sight.
Date may be approximate, although the witness does not indicate that fact.  PD