'''NGC 688''' je [[galaksijaprečkasta spiralna galaktika]] u [[zviježđe|zviježđu]] [[Trokut]]. Pripada [[galaktički skup|galaktičkom skupu]] [[Abell 262]]<ref>{{Cite journal|last=M.|first=Garcia, A.|date=July 1993|title=General study of group membership. II - Determination of nearby groups|journal=Astronomy and Astrophysics Supplement Series|language=en|volume=100|pages=47|issn=0365-0138|bibcode=1993A&AS..100...47G}}</ref>. Otkrio ju je astronom [[Heinrich d'Arrest]], [[16. rujna]] [[1865.]]<ref>{{Cite web|url=http://cseligman.com/text/atlas/ngc6a.htm#688|title=New General Catalog Objects: NGC 650 - 699|website=cseligman.com|language=en-US|access-date=2018-11-14}}</ref>
