The spot was also observed without any white "companion clouds" present around its edges, again in contrast to the Great Dark Spot. When NASA pointed the Hubble Space Telescope toward Neptune in 1994, both giant spots were no longer present.
In 1994, when NASA used the Hubble Space Telescope to observe Neptune, the spot was observed without any white "companion clouds" around its edges, a difference from the Great Dark Spot.  Both of these large spots disappeared by that time.