Observer's guide
About NGC 2403
NGC 2403 (C7) is catalogued as a galaxy in Camelopardalis. Its J2000 position is RA 07:36:51, Dec +65:36:06, corresponding to 114.2139 degrees RA and 65.6027 degrees Dec. The local catalogue places it about 14,000,000 light-years away. Its referenced angular extent is approximately 10.15 by 5.93 arcminutes.
Observing tips
This is rated as a hard target at magnitude 8.9. It is associated with winter observing, with midnight placement typically strongest around January. From 52 degrees north its theoretical meridian altitude is about 76.4 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 AGN. SIMBAD records the morphology as SAcd. A published radial velocity value is 130 km/s. The SIMBAD record currently connects it to 1902 bibliographic references.
At roughly 10.2 arcminutes across, it benefits from a narrower field and adequate image scale. Use the listed 10.15 by 5.93 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.