Online Star Register (OSR) believes that every person on earth should enjoy their very own star in the night sky.
[8] The three-letter abbreviation for the constellation, as adopted by the International Astronomical Union in 1922, is "Hyi".
[9] The official constellation boundaries, as set by Belgian astronomer Eugène Delporte in 1930, are defined by a polygon of 12 segments. It remains below the horizon for most Northern Hemisphere observers. [38], HD 20003 is a star of magnitude 8.37. Observations over five years were not able to establish its periodicity. It lies in the southern hemisphere, stretched across 102.5°. [41] The constellation also contains a spiral galaxy, NGC 1511, which lies edge on to observers on Earth and is readily viewed in amateur telescopes. Hydrus / ˈ h aɪ d r ə s / is a small constellation in the deep southern sky.It 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 in) diameter celestial globe published in late 1597 (or early 1598) in Amsterdam by Plancius and Jodocus Hondius. This technology enables accurate calculation of water consumption and eliminates measuring deviations caused by sand, suspended particles or air pockets. A planet, Eta2 Hydri b, greater than 6.5 times the mass of Jupiter was discovered in 2005, orbiting around Eta2 every 711 days at a distance of 1.93 astronomical units (AU). Some of these main stars are known as: Some of the deep sky objects which have been discovered in Hydrus include: IC 1717, NGC 1511, NGC 1466, NGC 1473. Hydrus is a constellation that belongs to Johann Bayer’s family of the constellation. There is a constellation named Hydrus in the southern sky. This constellation first appeared on the globe of the celestial constellation in the year 1597. [6], Irregular in shape,[7] Hydrus is bordered by Mensa to the southeast, Eridanus to the east, Horologium and Reticulum to the northeast, Phoenix to the north, Tucana to the northwest and west, and Octans to the south; Lacaille had shortened Hydrus' tail to make space for this last constellation he had drawn up. Within millions of galaxies and stars which are there above in the universe each of them has their story and characteristics. [11] Hydrus culminates at midnight around 26 October. [37] The system is a complex one as the faint star GJ 3021B orbits at a distance of 68 AU; it is a red dwarf of spectral type M4V.
He assigned Rho to a star that subsequent astronomers were unable to find. [18] Of spectral type F0IV,[19] it is beginning to cool and enlarge as it uses up its supply of hydrogen.
That’s why we make it possible for you to name a star in the Online Star Register! [14], Beta Hydri, the brightest star in Hydrus, is a yellow star of apparent magnitude 2.8, lying 24 light-years from Earth. Hydrus was one of the twelve constellations established by the Dutch astronomer Petrus Plancius from the observations of the southern sky by the Dutch explorers Pieter Dirkszoon Keyser and Frederick de Houtman, who had sailed on the first Dutch trading expedition, known as the Eerste Schipvaart, to the East Indies. [12], In the southeastern corner of the constellation is Gamma Hydri,[7] a red giant of spectral type M2III located 214 light-years from Earth. It is a yellow main sequence star of spectral type G8V a little cooler and smaller than our Sun around 143 light-years away.
The brightest star of this constellation is Beta Hydri which has the visual magnitude of about 2.80. [1] As one of the deep southern constellations, it remains below the horizon at latitudes north of the 30th parallel in the Northern Hemisphere, and is circumpolar at latitudes south of the 50th parallel in the Southern Hemisphere. It has a magnitude of 11.59 and is thought to be over 12 billion years old. Hydrus does not associate any kind of myths with it. The story behind the name: Hydrus, the water snake, was noted by Dutch navigators Pieter Dirszoon Keyser and Frederick de Houtman who charted the southern skies between 1595 and 1597 on a voyage to the East Indies. So, when you talk about the constellation, it drives attention of everyone. It covers an area of about 245 square degrees. Hydrus is a southern circumpolar constellation and covers approximately 243 square degrees of sky. Hydrus resembles a rearing snake, with its head erect and body twisted into a sinuous … [16] The spectrum of this star matches a stellar classification of G2 IV, with the luminosity class of 'IV' indicating this is a subgiant star. Hydrus is a modern constellation created by the Dutch astronomer Petrus Plancius, who based his view of the constellation on measurements taken by Pieter Dirkszoon Keyser and Frederick de Houtman, who were both prominent Dutch sailors during the early 16th century.
The constellation Hydrus contains several bright stars that make up its shape. The French name was retained by Jean Fortin in 1776 for his Atlas Céleste, while Lacaille Latinised the name to Hydrus for his revised Coelum Australe Stelliferum in 1763. The Myth Behind the Constellation Hydrus.
Lying near it is VW Hydri, one of the brightest dwarf novae in the heavens. Few important keys about Hydrus constellation are given below: The bordering stars of this constellation are as follows: So if you want to see Hydrus, don’t miss it out this November. [7] Indeed, Herman Melville mentions it and Argo Navis in Moby Dick "beneath effulgent Antarctic Skies", highlighting his knowledge of the southern constellations from whaling voyages.
This family of constellation family also has Apus, Grus, Indus, Musca, Pavo, Tucana, Volans, Chamaeleon and Dorado. At most southern latitudes it is circumpolar, but appears highest in the midnight sky in October. It grabs 61st rank in amongst all the other constellations in size. [12], Located mostly in Dorado, the Large Magellanic Cloud extends into Hydrus. It is a close binary system that consists of a white dwarf and another star, the former drawing off matter from the latter into a bright accretion disk. The distance of this star is about 24.38 lights years away from earth. Thought to be between 6.4 and 7.1 billion years old, this star bears some resemblance to what the Sun may look like in the far distant future, making it an object of interest to astronomers.