Observer's guide
About Blackeye Galaxy
Blackeye Galaxy (M64) is catalogued as a spiral galaxy in Coma Berenices. Its J2000 position is RA 12:56:43.64, Dec +21:40:58.7, corresponding to 194.1821 degrees RA and 21.6827 degrees Dec. The local catalogue places it about 19,000,000 light-years away. Its referenced angular extent is approximately 10.99 by 6.22 arcminutes.
Observing tips
StarWatchr rates this as a moderate target at magnitude 8.5. It is associated with spring observing, with midnight placement typically strongest around March. From 52 degrees north its theoretical meridian altitude is about 59.7 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 SyG. SIMBAD records the morphology as SABa. A published radial velocity value is 438 km/s. The SIMBAD record currently connects it to 1017 bibliographic references.
At roughly 11 arcminutes across, it benefits from a narrower field and adequate image scale. Use the listed 10.99 by 6.22 arcminute extent to check framing, and treat catalogue magnitude as integrated brightness rather than a direct measure of visual contrast.