Zeta UMa Observatory

M45 - Pleiades

Las Pléyades se encuentran entre los objetos estelares conocidos desde tiempos más remotos. A simple vista se pueden observar fácilmente 6 estrellas del cúmulo. De acuerdo con la Mitología Griega, las estrellas principales tienen los nombres de las siete hijas de Atlas y Pleione: Alcyone, Asterope, Electra, Maia, Merope, Taygeta y Celaeno. La nebulosa de las Pléyades es de color azulado, lo que indica que se trata de una nebulosa de reflexión, que refleja la luz de las estrellas situadas cerca. Esta nebulosa es probablemente parte de una nube de polvo no relacionada con las estrellas que envuelve, sino que de ha cruzado en su camino; este dato se ha deducido de las diferentes velocidades radiales de la nebulosa y las estrellas. The Pleiades are among those objects which are known since the earliest times. At least 6 member stars are visible to the naked eye. According to Greek mythology, the main, visible stars are named for the seven daughters of "father" Atlas and "mother" Pleione: Alcyone, Asterope (a double star, also sometimes called Sterope), Electra, Maia, Merope, Taygeta and Celaeno. The Pleiades nebulae are blue-colored, which indicates that they are reflection nebulae, reflecting the light of the bright stars situated near (or within) them. Physically, the reflection nebula is probably part of the dust in a molecular cloud, unrelated to the Pleiades cluster, which happens to cross the cluster's way. It is not a remainder of the nebula from which the cluster once formed, as can be seen from the fact that the nebula and cluster have different radial velocities, crossing each other with a relative velocity of 6.8 mps, or 11 km/sec. Extracted from seds.org
1 - 1 of 1 Photo
Rss_feed