Cancer constellation is one of the most faded constellations. Around this constellation there are a large number of other clusters of stars: Hydra, Lynx, Leo, Gemini. The night southern constellation of Cancer is observed, as a rule, in the period from January to May, because it is at this time that it is at the highest point above the horizon.
About 60 stars can be seen in the constellation without peering, among which only 5 are the brightest (4th magnitude). All the stars included in the constellation are connected by lines that create a certain triangle, and at its top you can see the star chain. It is very difficult to consider cancer in the figure formed by the stars, but in the atlases of the stars of ancient times it is depicted exactly that.
Stars γ and δ form an amazing, albeit blurry, foggy "star". It is interesting that back in ancient times this unusual "star" was noticed and called the "Nursery", and the stars that form it were called "foals." Even in ancient times, people believed that if the "foals" shine brightly, or the "Day nursery", on the contrary, is dark, then you need to wait for rain. Since the spyglass was invented , it turned out that this foggy “star” is a star cluster, which was first noticed by Galileo. The misty star "Nursery" is an open cluster of stars, which includes about 100 stars (with a diameter of 16 light years). The amazing fact is that up to this astounding constellation of Cancer is about 520 space years. Observation of the constellation is so mesmerizing that it is impossible to break away from this cosmic abyss and the stars that inhabit it.
A fact that astrologers are interested in in this amazing cluster of stars: the constellation Cancer includes one of the brightest binary stars (ι cancer). It is this star that is the main one, its magnitude is about 4 m , 2. Very close to it is a satellite, the size of which is 6 m , 8. This star captivates, it gleams with yellowness, and gives the satellite a blue glow. This spectacle is wonderful and fantastically beautiful, because it represents the radiance of cosmic “diamonds”.
Attention is drawn to the relatively dim star, which Cancer boasts. The constellation in this place is almost invisible to human vision, and the size of this distant star is about 5 m . This star is a cluster of 5 stars that can be viewed using an exceptionally very powerful telescope.
The constellation Cancer is present in the sky due to the fact that the closest star to us, the Sun, moves along the ecliptic. Thanks to this movement, the star moves from the constellation to the constellation. There are twelve such star zodiac clusters in the cosmic abyss (constellations Aries, Cancer, Leo, Pisces, Gemini, Libra, Scorpio, Virgo, Sagittarius, Capricorn, Aquarius, Taurus).
About 2000 years ago, the site of the summer solstice was located in the region of the celestial sphere, where the very amazing constellation Cancer is located. Due to the fact that the visible movement was directed back, it resembled a cancer that backs away, therefore this area of the sphere of the sky was called in this way.
Stars are one of the most mysterious wonders of space, it is a pleasure to study them!