Leo I is a dwarf spheroidal galaxy located about 820,000 light-years away in the constellation of Leo. Also known as DDO 74, LEDA 29488 and UGC 5470, the galaxy is a member of the Local Group. Leo I is thought to be one of the most distant satellites of our Milky Way Galaxy.
Who was emperor Leo?
Leo I, in full Leo Thrax Magnus, (died Feb. 3, 474), Eastern Roman emperor from ad 457 to 474. Leo was a Thracian who, beginning his career in the army, became a protégé of General Aspar.
What is saint Leo known for?
Sixtus III, Leo, one of the few popes termed great, immediately worked to suppress heresy, which he regarded as the cause of corruption and disunity. Yet his most significant theological achievement was not his negative suppression of heresy but his positive formulation of orthodoxy.
Who was the 1st pope?
Peter, traditionally considered the first pope. Among these, 82 have been proclaimed saints, as have some antipopes (rival claimants to the papal throne who were appointed or elected in opposition to the legitimate pope).
Is dwarf a galaxy?
Dwarf galaxies are small galaxies composed of a few billion stars. Compared to their larger cousins, which can contain hundreds of billions of stars, dwarf galaxies are typically home to a just few billion stars.
Is Andromeda in the Milky Way?
For centuries astronomers regarded the Andromeda Galaxy as a component of the Milky Way Galaxy—i.e., as a so-called spiral nebula much like other glowing masses of gas within the local galactic system (hence the misnomer Andromeda Nebula).
How many stars does Leo 1 galaxy have?
We have obtained deep CCD photometry of ~16000 stars in the Leo I dwarf spheroidal galaxy (dSph), the most distant known satellite of the Milky Way Galaxy.
How did Leo get its name?
Leo is also called the lion. To the ancient Greeks and Romans the constellation represented the Nemean lion. The hero Heracles (or Hercules) killed the Nemean lion as part of a series of tasks he had to perform. The Romans gave the constellation the name Leo.
What is so special about the Leo constellation?
The constellation of Leo is among the largest zodiac constellations in the sky. It is full of deep-space objects and bright stars. Many Messier objects are present here as well. Some asterisms are present in the constellation of Leo as well.
What is the myth behind the constellation Leo?
In Greek mythology, Leo was identified as the Nemean Lion which was killed by Heracles (Hercules to the Romans) during the first of his twelve labours. The Nemean Lion would take women as hostages to its lair in a cave, luring warriors from nearby towns to save the damsel in distress, to their misfortune.
Who is Leo the third?
Definition. Leo III was emperor of the Byzantine Empire from 717 to 741 CE. He founded the Isaurian dynasty which ruled until 802 CE. The emperor was a talented administrator, and he revamped the empire’s political apparatus and legal code.
Who was Leo the 3rd?
Leo III the Isaurian (Greek: Λέων ὁ Ἴσαυρος, romanized: Leōn ho Isauros; c. 685 – 18 June 741), also known as the Syrian, was Byzantine Emperor from 717 until his death in 741 and founder of the Isaurian dynasty.
Why did Leo the third ban icons?
Emperor Leo III, the founder of the Isaurian Dynasty, and the iconoclasts of the eastern church, banned religious images in about 730 CE, claiming that worshiping them was heresy; this ban continued under his successors.
How many Pope Leo are there?
Pope Leo was the name of thirteen Roman Catholic Popes: Pope Leo I (the Great) (440–461) Pope Leo II (682–683) Pope Leo III (795–816)
Which pope was called the Great?
Instead, it argues that John Paul belongs in the company of two popes who have been declared “the Great:” the 5th Century Pope Leo I and the 6th century Pope Gregory.
Has a pope ever been killed?
John VIII was the first pope to be assassinated during a particularly turbulent century that would see multiple claimants to the papacy and a succession of violent papal deaths.
Why do Catholics worship Mary?
Roman Catholic views of the Virgin Mary as refuge and advocate of sinners, protector from dangers and powerful intercessor with her Son, Jesus are expressed in prayers, artistic depictions, theology, and popular and devotional writings, as well as in the use of religious articles and images.
Who founded Catholic Church?
According to Catholic tradition, the Catholic Church was founded by Jesus Christ. The New Testament records Jesus’ activities and teaching, his appointment of the twelve Apostles, and his instructions to them to continue his work.
How big is the largest galaxy?
The biggest known galaxy, first described in a 1990 study from the journal Science (opens in new tab), is IC 1101, which stretches as wide as 4 million light-years across, according to NASA (opens in new tab). Galaxies are often bound to each other gravitationally in groups that are called galaxy clusters.
How big is a small galaxy?
Dwarf Spheroidal galaxies exist at the faint end of the Dwarf Elliptical scale. As the name suggests, these galaxies are more spherical than elliptical and tend to be much smaller than Dwarf Ellipticals, with diameters of only 0.1 – 0.5 kiloparsecs.
What is the smallest type of galaxy?
An ultra-faint collection of 1,000 stars orbiting the Milky Way is the most lightweight galaxy ever discovered, scientists say. The dwarf galaxy known as Segue 2 is bound together by a tiny clump of dark matter.
Will humans survive Andromeda collision?
A: There is a 1 in 400,000 chance that humans will survive the Andromeda collision.
What is the oldest planet?
Jupiter formed in a geologic blink. Its rocky core coalesced less than a million years after the beginning of our solar system, scientists reported Monday in the Proceedings of the National Academy of Sciences.
What is the closest universe to ours?
Distance Information The closest known galaxy to us is the Canis Major Dwarf Galaxy, at 236,000,000,000,000,000 km (25,000 light years) from the Sun. The Sagittarius Dwarf Elliptical Galaxy is the next closest , at 662,000,000,000,000,000 km (70,000 light years) from the Sun.
Why is Leo the Lion?
Its name means “lion” in Latin. It is one of the oldest constellations in the sky. The ancient Mesopotamians may have had a constellation similar to Leo as early as 4,000 BC. The Persians called it Shir, and the Babylonians knew it as the Great Lion.