Deneb Algedi (δ Cap) - The brightest star of the constellation. It is an eclipsing variable star of the Algol type, but its brightness varies only in the range of 2.9mag to 3.1mag, which is difficult to observe with the naked eye. It is located at a distance of 38 light-years.

Dabih Major (β Cap) - It is a yellow spectral binary star with a brightness of 3.3mag and an invisible companion that orbits it every 1374 days, located 650 light-years away. At a separation of 205", there is a blue companion Dabih Minor - β1, with a brightness of 6mag. It is located at a distance of 328 light-years. The whole system is completed by a third yellow star with a magnitude of 9mag, and in larger telescopes, a faint pair of stars with a magnitude of 13mag.

Prima Giedy (α1 Cap) - The brightness of 4.2 mag, together with α2 (Secunda Giedo - 3.6 mag), forms an optical double star that can be distinguished with the naked eye under favorable conditions, in the northwest corner of the "triangular" constellation. The components are separated by 378 arcseconds, which corresponds to about 1/5 of the diameter of the full Moon. Prima Giedo is a giant star located 117 light-years away, while the supergiant Secunda Giedo is closer, at a distance of about 102 light-years. However, they form a beautiful pair of two orange-yellow stars in the sky.

ρ Cap - A quite nice double star, even visible in binoculars and small telescopes. The stars (5mag, 6.7mag) are separated by 247.6", and therefore in a 15 cm telescope they appear as a wide colorful pair of yellow and purple stars.

π Cap - A binary star consisting of two components with magnitudes of 5.3 and 8.9, separated by 3.2". To resolve them, we will need a telescope with a minimum objective diameter of 10 cm and an eyepiece with a shorter focal length. Even with a 200 mm telescope and 200x magnification, they appear as a close pair of faint and blue components.