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  2. IAU designated constellations - Wikipedia

    en.wikipedia.org/wiki/IAU_designated_constellations

    Ian Ridpath's Star Tales: Constellation Mythology and History – Ian Ridpath's Star Tales. VizieR – CDS's archive of constellation boundaries. The text file constbnd.dat gives the 1875.0 coordinates of the vertices of the constellation regions, together with the constellations adjacent to each boundary segment.

  3. IAU designated constellations by area - Wikipedia

    en.wikipedia.org/wiki/IAU_designated...

    Hydra is the largest constellation, covering more than 1 ⁄ 32 of the night sky and 19 times the area of Crux, the smallest constellation. The International Astronomical Union (IAU) designates 88 constellations of stars. In the table below, they are ranked by the solid angle that they subtend in the sky, measured in square degrees and ...

  4. Sidereal and tropical astrology - Wikipedia

    en.wikipedia.org/wiki/Sidereal_and_tropical...

    A map of the IAU-defined constellation boundaries with the equal length signs used in tropical astrology overlaid.One can see that, due to precession and the inequality in the sizes of constellations, it appears that the constellations the signs are based on have moved eastward by nearly a month (or 30 degrees).

  5. Missouri City, Texas - Wikipedia

    en.wikipedia.org/wiki/Missouri_City,_Texas

    The area in which Missouri City is now located holds a significant part in the history of Texas that dates back to its early days as part of the United States. In August 1853, the Buffalo Bayou, Brazos and Colorado Railway (BBB&C), began operating its first 20 miles (32 km) of rail line that stretched from Harrisburg (now Houston) to Stafford's Point (now Stafford).

  6. Star chart - Wikipedia

    en.wikipedia.org/wiki/Star_chart

    A celestial map by the Dutch cartographer Frederik de Wit, 1670. A star chart is a celestial map of the night sky with astronomical objects laid out on a grid system. They are used to identify and locate constellations, stars, nebulae, galaxies, and planets. [1] They have been used for human navigation since time immemorial. [2]

  7. Libra (constellation) - Wikipedia

    en.wikipedia.org/wiki/Libra_(constellation)

    The official constellation boundaries, as set by Eugène Delporte in 1930, are defined by a polygon of 12 segments (illustrated in infobox). In the equatorial coordinate system , the right ascension coordinates of these borders lie between 14 h 22 m 08.08 s and 16 h 02 m 17.23 s , while the declination coordinates are between −0.47° and − ...

  8. Corvus (constellation) - Wikipedia

    en.wikipedia.org/wiki/Corvus_(constellation)

    The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, [a] 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 11 h 56 m 22 s and 12 h 56 m 40 s , while the declination coordinates are between ...

  9. Crux - Wikipedia

    en.wikipedia.org/wiki/Crux

    The constellation Crux as it can be seen by the naked eye Crux with clouds, from Cape Town. Within the constellation's borders, there are 49 stars brighter than or equal to apparent magnitude 6.5. [c] [18] The four main stars that form the asterism are Alpha, Beta, Gamma, and Delta Crucis. α Crucis or Acrux is a triple star 321 light-years ...