In colloquial usage, a constellation is a group of celestial bodies, usually stars, which appear to form a pattern in the sky. Astronomers today still utilize the term, though the current system focuses primarily on constellations as grid-like segments of the celestial sphere rather than as patterns. A star-pattern that is not officially classed as a constellation is referred to as an asterism. One famous example is the asterism known as the Big Dipper, a term unused by the International Astronomical Union (IAU) as the stars are considered part of the larger constellation of Ursa Major.
In 1922, Eugène Delporte aided the IAU in dividing the celestial sphere into 88 official constellations. Typically, these modern constellations share the names of their Graeco-Roman predecessors, such as Orion, Leo and Scorpius. While such celestial formations were originally linked to a mythical event, creature or person, the categorization of the night sky into recognizable patterns was important in early land and naval navigation prior to the invention of the compass during the Age of Discovery. With the technical advancement of astronomy, it became important to move from a pattern-based system of constellations to one based on area-mapping, which led to several historic formations becoming obsolete.
constillations
Apparently the constellation Bootes is the oldest constellation.
ursa major big dipper
No the big dipper is IN Ursa Major and the little dipper is in Ursa Minor
That would depend on where you looked at it from. All constellations depend on where they are seen from. If our planet were orbiting around a different star, most, if not all the constillations would look different. If you are on the Earth, it's not in any constellation.
A few details - The three brightest stars in Leo the Lion are : Alpha Leonis or Regulus (the Lion's heart) with an apparent magnitude of 1.35, Beta Leonis or Denebola (the Lion's tail) with an apparent magnitude of 2.14 and Gamma Leonis or Algieba (where the Lion's mane meets his body) with an apparent magnitude of 1.98
That would depend on where you looked at it from. All constellations depend on where they are seen from. If our planet were orbiting around a different star, most, if not all the constillations would look different. If you are on the Earth, it's not in any constellation.
The Ancient Arabs, Greeks, Hindus, Romans - they all helped name the constellations. Different cultures have different names for the constellations.