In a 6" is is obvious at 50X, taking on the appearance of a telescopic comet with no tail. It sports a 13th magnitude central star, and appears relatively round. In this scope is has a strongly mottled appearance, sometimes taking on the look of a barely resolved globular cluster. Larger scopes will show more detail. Look for the irregular shape of the bright inner disk at high power.
The above image was generated from the Palomar Sky Survey using SkyView and shows a 6' x 6' area.