Iota Leonis is a star

Star

A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

 in the constellation

Constellation

In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

 Leo

Leo (constellation)

Leo is one of the constellations of the zodiac. Its name is Latin for lion. Its symbol is . Leo lies between dim Cancer to the west and Virgo to the east.-Stars:...

.

It was known as 太微右垣三, "the Third (Star) of the Right Wall of the Supreme Palace Enclosure

Supreme Palace enclosure

Tai Wei Yuan, the Supreme Palace Enclosure , is one of the San Yuan or Three enclosures. Stars and constellations of this group are visible during autumn in the Northern Hemisphere .-Asterisms:The asterisms are :...

" or 次將 (Tsze Tseang, Mandarin cìjiàng), "the Vice-General", in traditional Chinese astronomy

Iota Leonis is of the spectral class F4IV and apparent magnitude

Apparent magnitude

The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...

 +3.94. It is a spectroscopic binary, which means it is a binary star

Binary star

A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary...

with components that are too close together to be able to resolve individually through a telescope.