Ras Alhague (α Oph) - With its 2nd magnitude, it is the brightest star in the constellation. Ras Alhague is located at the northern edge of the constellation and is not very far from a star with a similar name, α Herculis, the main star of Hercules. It is a yellow-white giant star located 48 light-years away from us. This distance is constantly increasing due to its motion of 8 km per second.

λ Oph - A nice double star with a period of 130 years. Its components have magnitudes of 4.2 and 5.2 and are separated by 1.5". One of them has a white color, while the other has a light yellow color. At a larger separation, we can also observe two additional, probably optical companions with magnitudes of 9.5 and 11.1.

70 Oph - A binary star consisting of two stars with magnitudes of 4.2 and 6 has a mutual orbital period of 87 years. The orbital path has such a spatial position that the apparent angular separation of the two stars significantly changes during the orbital period. The smallest separation (1.5") was reached by both stars in 1989 and 1990. At the turn of the millennium, their separation increased to 3.9", which could be observed even with a telescope with a 5 cm diameter objective. In 2005, the distance increased to 5". The largest separation of 6.8" will be reached by both stars in 2024.

ρ Oph - A binary star located 3° northwest of Antares, consisting of blue components with magnitudes of 5.3 and 6, separated by 3.1" (4.59 mag). The area around them is interesting for photographers. To the west, there is an elongated dark nebula Barnard 42, which appears as a silhouette against the beautiful gas and dust complex IC 4604, illuminated by the star ρ Ophiuchi. However, the nebula has a very low surface brightness.

36 Oph - A beautiful double star with equally bright orange components of magnitude 5.1, separated by 4.9" and distinguishable even in smaller telescopes. At a larger separation from it, an orange companion of magnitude 8.1 is visible to the northwest.

τ Oph - A binary star, which consists of a beautiful but close pair of yellow stars with magnitudes of 5.2 and 5.9, respectively, and a period of 280 years. Currently, their separation is about 1.7", but it is still decreasing. At a distance of 100", we can find a guide star with a brightness of 9.3 mag.

RS Oph - Recurrent nova, which gradually flared up in the years 1898, 1933, 1958, 1967, and 1985. It has a minimum brightness of 11.8mag and can flare up to 4.3mag.

Keplerova supernova - The last galactic supernova, which erupted on September 9, 1604. It is named after a famous German astronomer who observed it at that time. It was visible to the naked eye for 12 months and several weeks, and its brightness of -2.5mag surpassed even the planet Jupiter. Johannes Kepler and David Fabricius determined its position with such precision that the German-American astronomer Walter Baade could identify a faint nebula, the remnant of the supernova, in the same location in 1943. The star itself is now fainter than 19mag and can only be observed with the largest telescopes. Its remnant was also revealed by the Hubble Space Telescope.

Barnardova hviezda - These interesting red stars, visible only through a telescope, move the fastest of all against the background of more distant stars - they shift by 10.31" per year, which means they change their position by the diameter of the Moon in 180 years. Sometimes they are also referred to as Barnard's arrow. Among all known stars, they have the largest proper motion, which was discovered by E. Barnard in 1916. After the Alpha Centauri system, they are the second closest star to our Sun, only 5.9 light-years away, which is also the main reason for their fast motion across the sky. Barnard's arrow is still approaching us, and in the year 9700, when it will be located in the head of Draco, it will be only 3.8 light-years away from us! Tracking its motion can be a very interesting activity. By drawing its position in the star field at least once a year with a higher magnification, we can see it for ourselves.