Observer's guide
About NGC 1904
NGC 1904 (M79) is catalogued as a globular cluster in Lepus. Its J2000 position is RA 05:24:10.59, Dec -24:31:27.2, corresponding to 81.0441 degrees RA and -24.5242 degrees Dec. The local catalogue places it about 41,100 light-years away. Its referenced angular extent is approximately 8.7 by 8.7 arcminutes.
Observing tips
This is rated as a moderate target at magnitude 7.7. It is associated with winter observing, with midnight placement typically strongest around December. From 52 degrees north its theoretical meridian altitude is about 13.5 degrees; local horizons and the live altitude chart determine the practical window.
A small telescope under reasonably dark skies is a good starting point; use the live altitude chart to choose its highest point.
What to expect
The SIMBAD classification for the matched source is GlC. A published radial velocity value is 205.6 km/s. The SIMBAD record currently connects it to 896 bibliographic references.
At roughly 8.7 arcminutes across, it benefits from a narrower field and adequate image scale. Use the listed 8.7 by 8.7 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.