About Constellation 12

Yes, Leo is in the fifth house of the zodiac.

Extending southward from the straight line of δ and γ stars in Ursa major, you will see a bright blue-and-white star, which is the brightest alpha star in Leo. Leo has two obvious signs, the head is like a question mark written backwards, and the three stars at the tail form a right triangle. Alpha Leo is at the bottom of the question mark. The Chinese name of this star is Xuanyuan XIV. It is located in the north of the ecliptic, near the ecliptic. It is the only 1 star on the ecliptic, so people have paid attention to it since ancient times. Both at home and abroad, it is called "the star of the king". Xuanyuan Fourteen is about 84 light years away from us. Its spectral type is B type, and its luminosity is 150 times that of the sun. It is one of the nine planets in navigation, and sailors often use it to determine their course. The ancients once selected it as one of the "four stars of the king", which means the most recognizable bright star. The other three stars are Alpha Star in Scorpio (Antares), Alpha Star in Pisces (Norodom) and Alpha Star in Taurus (Pisces). When you observe the alpha star of Leo with a telescope, you will find that it is a binary star, and there is a dark star with a magnitude of 7.6 near 3' 5. In fact, it is a quarter star, with two companion stars of 7.9 and 13 at a distance of 4 ″ from the main star. Another bright star in Leo rhetorical question is Leo γ star, which is a famous binary star. Now we know that about half of the stars in the sky are binary stars. They are two physically interrelated star systems. Usually, the brighter one is called the main star, and the darker one is called the companion star. When the angular distance between two stars is large enough, it is called a visual binary star that can distinguish two stars with a telescope; If the angular distance between two stars is very small, it can't be distinguished by telescope observation, but when it is observed by spectrometer, the spectral line of starlight moves because of the change of their apparent speed in operation, which is called spectral binary star; The distance between two stars is so close that there is a material exchange between them, which is often called a near binary star. Leo gamma star is a beautiful binary star with increasing angular distance. The angular distance between the two stars is now 4 ".3, and the companion star has been orbiting the main star for 407 years. There are several other galaxies in Leo that can be seen with a medium-caliber telescope. M65 and M66 located at the bottom of the Leo Triangle are two spiral galaxies, the former is 9.5 and the latter is 8.8, which are brighter and 22 million light years away. Generally speaking, there are four kinds.