Cor Caroli (α CVn) - "Karlovo srdce", the brightest star of the constellation. This star was named by Edmund Halley on the suggestion of Sir Charles Scarborough, the court physician and physicist, who claimed that the star shone exceptionally brightly on May 29, 1660, when the English king Charles II, the founder of the Greenwich Observatory, returned to London. Another story says that it is the heart of King Charles I, executed on the orders of Oliver Cromwell in the mid-17th century, which made its way to the sky.

Y CVn (E-B 364) - "The Superba," that's how Italian astronomer Angelo Secchi named this significantly red star in the 19th century. It is a variable star that changes its brightness from 4.8mag to 6.4mag in a period of 157 days. The striking red hue can be easily seen in 50-60 mm telescopes. The unusual, dark red color of this and similar stars is a result of the presence of carbon molecules (which are abundantly present in the atmosphere) absorbing the blue light of the star.

25 Canum Venaticorum - A binary star that splits into two yellow components of brightness 5mag and 6.9mag in a 15 cm telescope. Their angular separation is 1.8".