It has an estimated 2.0 solar radii or 200% the sun’s radius, and 4.74 solar masses or 474% the sun’s mass. Distance, Size, and MassĪtlas is located at around 431 light-years / 132 parsecs away from the Sun, and it is 3.92 degrees north of the ecliptic.Ītlas is more than 2 times bigger than our sun. Gravity pulled the swirling dust and gas together and formed the Pleiades star cluster which is now dominated by the hot blue and luminous stars. All the stars here have a common origin, they formed through a gigantic molecular cloud of dust and gas. The Pleiades cluster is among the closest star clusters to Earth.

FormationĪtlas, along with its neighboring stars in the Pleiades cluster, formed roughly between 75 and 150 million years ago. After the war was won by the Olympian gods, many titans were punished for their deeds and locked away.Ītlas was condemned to carry the heavens on his shoulders, he, along with with the Oceanid nymph Pleione, are the parents of the Pleiades and the Hyades, (now the names of the famous open clusters of Taurus). Atlas is of Greek origin, coming from the famous Greek mythologies regarding the gods.Ītlas was one of the Titans who opposed the Olympian gods and though powerful, lost to them in battle. The star’s name was approved by the WGSN fairly recently, in 2016.

Though the cluster is very bright, it cannot be seen during the months of May and June since in that period it is too close to the Sun.

Both the zodiacal constellation of Taurus and the Pleiades open cluster, have been known to humanity for thousands of years.

Since Atlas is located at 3.92 degrees north of the ecliptic, it is in the Sun’s apparent path across the sky.

Both stars in the Atlas star system are variable as the CCDM lists them with magnitudes of 3.8 and 6.8.

Though Atlas appears as a single star to the naked eye, it is, in fact, a binary star system with Atlas A having an apparent magnitude of 3.84 while Atlas B has an apparent magnitude of 5.46.

Since Atlas is such a fast spinner, the material ejected from the star formed a disk around it.

This star, along with most of the Pleiades stars, is spinning very fast at an estimated rotational velocity of 280 kilometers / 173.9 miles per second.

Most of the energy emitted by Atlas is in the invisible ultraviolet part of the spectrum.

The star is also more massive, having 474% the sun’s mass and twice the sun’s radius.

Atlas is a blue-white giant star of spectral type B8 III, it is more than 1.000 times brighter than our Sun.

Atlas has an apparent magnitude of 3.63 and it’s a suspected variable type of star.

The bright star is located at around 431 light-years / 132 parsecs away from the Sun, and it is 3.92 degrees north of the ecliptic.Atlas is the ninth brightest star in its constellation, and the second brightest star in the Pleiades cluster, after Alcyone.Recall that a chart on a topological manifold is a homeomorphism from an open subset of to an open subset of. In the complex case, we assume that the dimension of is even and that the boundary of is empty. We give a unified presentation of the definition of piecewise linear, smooth and complex manifolds. We briefly review some common categories of manifolds below. The extra structure will be emphasised or suppressed in notation and vocabulary as is appropriate. Typically, but not necessarly, the word “manifold” will mean 'topological manifold with extra structure', be it piecewise-linear, smooth, complex, symplectic, contact, Riemannian, etc. is called closed if is compact and is empty.Ī manifold as above is often called a topological manifold for emphasis or clarity.The boundary of, written, is the complement of.The interior of, denoted, is the subset of points for which is an open subset of.An n-dimensional manifold is a second countable, Hausdorff space for which every point has a neighbourhood homeomorphic to an open subset of.

Atlas definition