the constellation Aquila with the exact opposite coordinates at right ascension , declination . It would be as bright as β Scorpii is in our sky. Canis Minor would obviously be missing its brightest star. Procyon's closest neighboring star is Luyten's Star, about away. Procyon would be the brightest star in the night sky of an exoplanet orbiting Luyten's Star, with an apparent magnitude of -4.68. See also Procyon in astrology Procyon in fiction Notes References Sources Canis Minor Binary stars Canis Minoris, Alpha Canis Minoris, 10 061421 2943 037279 0280 BD+05 1739 Local Bubble White dwarfs F-type main-sequence stars F-type subgiants Procyon Astronomical objects known since antiquity 19790401 TIC objects