α CMi. Magnitude 0.38, yellow-white. A first-magnitude star, among the brightest few dozen visible.
Astronomers call it α CMi — the Bayer designation, which reads as a Greek letter ranking its brightness within its constellation. Procyon is the name people actually use.
Procyon shines at magnitude 0.38, making it a first-magnitude star, among the brightest few dozen visible. Its B−V colour index of 0.42 makes it yellow-white to the eye, corresponding to a surface temperature of around 6,000 K.
It sits at right ascension 7.66 hours and declination +5.2°. It straddles the celestial equator, so it is visible from essentially anywhere on Earth at the right time of year.
SkyRef shows exactly where Procyon is from your location right now — altitude, compass direction, and rise and set times.