[9], Although he depicted Tucana on his chart, Bayer did not assign its stars Bayer designations. [34] It is around double the Sun's mass, having siphoned off one whole solar mass from its companion, now a hydrogen-depleted dwarf star of around only 0.2 solar masses. It is the second brightest globular cluster in the night sky, after Omega Centauri in Centaurus constellation.
[14] A cool star with a surface temperature of 4300 K, it is 424 times as luminous as the sun and 37 times its diameter. It resembles the more famous Whirlpool Galaxy in Canes Venatici constellation.
The nearest main star in the constellation is at a distance of 28.01 light years and the furthest main star is a distance of 373.18 light years. Two planets, both less massive than Jupiter, were discovered orbiting the star in 2009. The galaxy was discovered by R. J. Lavery in 1990. Multiple Planet Systems from the HARPS Volume Limited Sample", "The HARPS Search for Southern Extra-solar Planets. It lies in the first quadrant of the southern hemisphere (SQ1) and can be seen at latitudes between +25° and -90°. Of apparent magnitude 5.46, it is approximately 220 light-years distant from Earth. [42], Five star systems have been found to have planets, four of which have been discovered by the High Accuracy Radial Velocity Planet Searcher (HARPS) in Chile. The average distance to the main stars is 177.01 light years. Tucana is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. It is approximately 373 light-years from Earth. It has a combined apparent magnitude of 4.25 and is 66.6 light years distant. This website uses cookies to improve your experience while you navigate through the website. Tucana first appeared on a 35-centimetre-diameter (14 in) celestial globe published in 1598 in Amsterdam by Plancius and Jodocus Hondius and was depicted in Johann Bayer's star atlas Uranometria of 1603. The two galaxies are connected by a bridge of gas and believed to be tidally interacting. It is a companion galaxy to the Milky Way and a member of the Local Group of galaxies.
A planet was discovered orbiting the star in 2012. The first depiction of this constellation in a celestial Along with the Large Magellanic Cloud, it lies within the Magellanic Stream, a cloud of gas that connects the two galaxies. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong. The star has 87.2 percent of the Sun’s mass, about the same radius, and only 39 percent of the Sun’s luminosity. [9] It is an orange subgiant of spectral type K3III around 199 light-years distant from the Solar System.
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