The three brightest stars of the summer night sky: Vega (a Lyra), Deneb (a Cygnus), Altair (a Orla) form the vertices of a triangle – the dominant configuration of the brightest stars of this season of the year.
The three brightest stars of the constellations Orion, Canis Major and Canis Minor – Betelgeuse, Sirius and Procyon form an equilateral figure called the Winter Triangle.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.