I was on an evening cape cod canal cruise with my wife and noticed a odd colored light slowly moving from my left to right.Because of the color like no aircraft i've ever seen and no blinking white or red or green common aircraft lights,i thought i would take a couple of pctures.I'm glad i did because before i new it the light blinked out. a lady next to me witnessed this also.When i looked at it on my phone and stretched the size, that is when i could see the oval shape.I was exited and glad i got two pictures.