Observer's guide
About NGC 752
NGC 752 (C28) is catalogued as an open cluster in Andromeda. Its J2000 position is RA 01:57:41, Dec +37:47:06, corresponding to 29.2229 degrees RA and 37.7939 degrees Dec. The local catalogue places it about 1,200 light-years away. Its referenced angular extent is approximately 58.2 by 58.2 arcminutes.
Observing tips
StarWatchr rates this as a very easy target at magnitude 5.7. It is associated with autumn observing, with midnight placement typically strongest around October. From 52 degrees north its theoretical meridian altitude is about 75.8 degrees; local horizons and the live altitude chart determine the practical window.
Its brightness makes it a practical binocular or small-telescope candidate when it is well above the horizon.
What to expect
The SIMBAD classification for the matched source is OpC. A published radial velocity value is 5.4 km/s. The SIMBAD record currently connects it to 722 bibliographic references.
Its roughly 58.2 arcminute span suits a medium field of view. Use the listed 58.2 by 58.2 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.