Observer's guide
About NGC 7092
NGC 7092 (M39) is catalogued as an open cluster in Cygnus. Its J2000 position is RA 21:31:48.32, Dec +48:26:17.4, corresponding to 322.8892 degrees RA and 48.2469 degrees Dec. The local catalogue places it about 825 light-years away. Its referenced angular extent is approximately 120.4 by 120.4 arcminutes.
Observing tips
StarWatchr rates this as an easy target at magnitude 5.2. It is associated with autumn observing, with midnight placement typically strongest around August. From 52 degrees north its theoretical meridian altitude is about 86.2 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 -5.2 km/s. The SIMBAD record currently connects it to 250 bibliographic references.
At roughly 120.4 arcminutes across, it favors a wide-field imaging setup. Use the listed 120.4 by 120.4 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.