constellation lyre grande ourse

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constellation lyre grande ourse


It has an apparent magnitude of 4.30 and is approximately 740 light years distant.

Once there, his song deeply moved Hades and his wife Persephone and they agreed to return Eurydice to the world of the living on one condition: Orpheus should walk in front of her and not look back until they both had reached the upper world. It is one of the oldest and most metal-rich clusters known in the Milky Way.NGC 6745 is an irregular galaxy in Lyra constellation, believed to be around 10 billion years old.

Les civilisations antiques en Sous la forme d'un vautour, cette constellation s'est raccrochée à la légende d'La lyre représenterait pour sa part l'instrument de musique d'Quand les conditions de visibilité sont meilleures (mag 4), on voit que Véga s'inscrit au milieu du côté (κ Lyr, 13 Lyr) d'un quadrilatère dessiné par Sulafat (γ Lyr, l'extrémité du club), κ Lyr, 13 Lyr et θ Lyr. It was the northern pole star around the year 12,000 BC and will be again around the year 13,727.Vega is 2.1 times as massive as the Sun, and only about a tenth of the Sun’s age.

Credit: A. FujiiDelta Lyrae consists of a star and a star system sharing the same Bayer designation.Delta-1 Lyrae is a binary star system with an orbital period of about 88 days.

As a result, the white dwarf is involved in periodic outbursts, presumably as a result of the instability in the accretion disk.The primary component in the DM Lyrae system is of unknown type.

The system is 26.5 light years distant from the Sun. When he was young, god Apollo gave him a golden lyre and taught him to play it, and his mother taught him to write verses.Orpheus was known for his ability to charm even stones with his music, for his attempts to save his wife Eurydice from the underworld, and for being the harpist and companion of Jason and the Argonauts.Without Orpheus and his music, the Argonauts would not have been able to make it past the Sirens, whose song enticed sailors to come to them, which usually resulted in sailors crashing their ships into the islands on which the Sirens lived. The name Sulafat is derived from the Arabic The star has a radius 15 times that of the Sun. Dans des conditions excellentes (mag 5), trois couples d'étoiles parallèles se dessinent, et on voit la constellation sous la forme d'un papillon dont δ Lyrae est une étoile triple.
The star has a mean apparent magnitude of 7.195 and is approximately 860 light years distant from the Sun.RR Lyrae has evolved from the main sequence, passed through the red giant stage and is now in the horizontal branch (HB) stage of evolution, powered by helium fusion in its core and hydrogen fusion in the shell surrounding the core.RR Lyrae’s variability was first discovered by the Scottish astronomer Williamina Fleming in 1901.

It has an apparent magnitude of 4.323 and is approximately 238 light years distant from the solar system. As is evolved into a giant, it transferred most of its mass to the other star, as the two are in close orbit.

The gods felt pity for him and advised him to travel to the underworld and try to retrieve Eurydice. High relative velocities cause ram pressures at the surface of contact between the interacting interstellar clouds.


Lyra constellation lies in the northern sky. They are believed to have been similar to the Sun at some point, but then shed their mass.

The smaller galaxy is believed to have lost most of its interstellar medium to the larger one in the collision.NGC 6745 – A large spiral galaxy, with its nucleus still intact, peers at the smaller passing galaxy (nearly out of the field of view at lower right), while a bright blue beak and bright whitish-blue top feathers show the distinct path taken during the smaller galaxy’s journey.

It may have at least one planet the size of Jupiter in its orbit.Vega is easy to find in the night sky because it is bright and also because it is part of a familiar summer asterism, the Gamma Lyrae is the second brightest star in the constellation. The neighboring constellations are Lyra belongs to the Hercules family of constellations, along with Lyra Constellation Map, by IAU and Sky&Telescope magazineLyra represents the lyre of Orpheus, the musician and poet in Greek mythology who was killed by the Bacchantes.

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constellation lyre grande ourse

constellation lyre grande ourse