Star size and thought it was a plane far off and it put out a light arch

I saw a light going from west to east and thought it was a plane, but it was far enough away I saw no other lights . As I watch it it put out a burst of light that that formed an arch bar of light about 30 times the size of the light it came from.  And was about 30 to 40 times the size of the light away from it.  I saw about 20 light lines attached to the light and to the arch of light. Then the arch of light began to enlarge and move further from the light.  As it did the lines of light faded away.  The further the arch of light moved away it got larger and it faded away as well.  The arch of light enlarged to about 3 to 4 times larger from what it started.  I watched the light proceed further east and it finally turned south with no other light bursts . It was interesting !   I have no video, I just watched it .