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Tucana (The Toucan) is a constellation in the southern sky, named after the toucan, a South American bird.It is one of twelve constellations conceived in the late sixteenth century by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman.
Volans is a constellation in the southern sky.It represents a flying fish; its name is a shortened form of its original name, Piscis Volans. [2] Volans was one of twelve constellations created by Petrus Plancius from the observations of Pieter Dirkszoon Keyser and Frederick de Houtman and it first appeared on a 35-cm (14") diameter celestial globe published in 1597 (or 1598) in Amsterdam by ...
Cygnus is a northern constellation on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. [1] Cygnus is one of the most recognizable constellations of the northern summer and autumn, and it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross).
The constellation stretches from roughly −39° to −57° declination, and from 23.5h to 2.5h of right ascension. The constellations Phoenix, Grus, Pavo and Tucana, are known as the Southern Birds. The brightest star, Alpha Phoenicis, is named Ankaa, an Arabic word meaning 'the Phoenix'. It is an orange giant of apparent magnitude 2.4.
The constellations Grus, Pavo, Phoenix and Tucana are collectively known as the "Southern Birds". The constellation's brightest star, Alpha Gruis, is also known as Alnair and appears as a 1.7-magnitude blue-white star. Beta Gruis is a red giant variable star with a minimum magnitude of 2.3 and a maximum magnitude of 2.0.
The defining vertices of this imaginary triangle are at Altair, Deneb, and Vega, each of which is the brightest star of its constellation (Aquila, Cygnus, and Lyra, respectively). The greatest declination is +45° and lowest is +9° meaning the three can be seen from all places in the Northern Hemisphere and from the home of most people ...
The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, [b] are defined by a polygon of six segments (illustrated in infobox). In the equatorial coordinate system , the right ascension coordinates of these borders lie between 13 h 49.5 m and 18 h 27.3 m , while the declination coordinates are between −67. ...
The constellation Aquila as it can be seen by the naked eye. Aquila was one of the 48 constellations described by the second-century astronomer Ptolemy. It had been earlier mentioned by Eudoxus in the fourth century BC and Aratus in the third century BC. [3] It is now one of the 88 constellations defined by the International Astronomical Union.