Observer's guide
About NGC 2477
NGC 2477 (C71) is catalogued as an open cluster in Puppis. Its J2000 position is RA 07:52:18, Dec -38:31:48, corresponding to 118.0458 degrees RA and -38.5369 degrees Dec. The local catalogue places it about 3,700 light-years away. Its referenced angular extent is approximately 18 by 18 arcminutes.
Observing tips
This is rated as a very easy target at magnitude 5.8. It is associated with winter observing, with midnight placement typically strongest around January. From 52 degrees north its theoretical meridian altitude is about 0 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 7.3 km/s. The SIMBAD record currently connects it to 319 bibliographic references.
At roughly 18 arcminutes across, it benefits from a narrower field and adequate image scale. Use the listed 18 by 18 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.