2 adjectives to describe shimmerings

The square was now deserted and in darkness, there was no light but the gentle shimmering of the stars scattered in space like golden dust.

Some idea of their temper may be drawn from the fact that, notwithstanding they are so long, the vibrations that give rise to the peculiar shimmering of the light are made at the rate of about two hundred and fifty per minute.

2 adjectives to describe  shimmerings