23257 Denny is an asteroid discovered by William Kwong Yu Yeung in late 2000. It is named in honour of Bob Denny, a developer of software for robotic telescopes and inventor of the Astronomy Common Object Model (ASCOM) standard.

fa: it:23257 Denny pl:23257 Denny pt:23257 Denny uk:23257 vi:23257 Denny yo:23257 Denny