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The Pleiades (/ ˈ p l iː. ə d iː z, ˈ p l eɪ-, ˈ p l aɪ-/), [8] [9] also known as Seven Sisters and Messier 45 (M45), is an asterism of an open star cluster containing young B-type stars in the northwest of the constellation Taurus.
Star map with the Pleiades (upper right) and the Hyades (centre, V-shaped head of the constellation Taurus with its main star Aldebaran, γ Tauri und ε Tauri (Ain)) at both sides of the ecliptic line (dashed red). The Golden Gate of the Ecliptic is an asterism in the constellation Taurus that has been known
The two satellites operate in the same phased orbit and are offset at 180° to offer a daily revisit capability over any point on the globe. The Pléiades also share the same orbital plane as the SPOT 6 and 7, forming a larger constellation with 4 satellites, 90° apart from one another. [5] Orbit: Sun-synchronous, phased, near-circular
The first images from space were taken on the sub-orbital V-2 rocket flight launched by the US on October 24, 1946. Satellite image of Fortaleza.. Satellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and businesses around the world.
In Japan, the Pleiades are known as Subaru (昴) which means "coming together" or "cluster" in Japanese and have given their name to the car manufacturer whose logo incorporates six stars to represent the five companies that merged into one. [78] Subaru Telescope, located in Mauna Kea Observatory on Hawaii, is also named after the Pleiades. [79]
Constellations are based on asterisms, but unlike asterisms, constellations outline and today completely divide the sky and all its celestial objects into regions around their central asterisms. [ 1 ] [ 2 ] For example, the asterism known as the Big Dipper or the Plough comprises the seven brightest stars in the constellation Ursa Major .
Constellation, the largest operator of U.S. nuclear power plants, said that some of its own projects to develop data centers at power plant sites are being stymied by the lack of clarity.
Because of precession, the positions of the constellations slowly change over time. By comparing the positions of the 41 constellations against the grid circles, an accurate determination can be made of the epoch when the original observations were performed. Based upon this information, the constellations were catalogued at 125 ± 55 BC.