Lupus (constellation)

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Lupus is a constellation in the southern sky. Its name is Latin for wolf. Lupus was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations. It lies between Centaurus and Scorpius.

Contents

Notable features

Stars

Lupus has no extremely bright stars, but has around 30 of 2nd and 3rd magnitude and 70 of greater than 6th, including a number of binary or multiple stars. In his catalogue, Patrick Moore gives the names Men for α Lupi, the brightest star in Lupus, and KeKouan for the blue giant β Lupi.[1] They also have the Chinese names (南)門 and 騎官.

Most of the brightest stars in Lupus are massive members of the nearest OB association, Scorpius-Centaurus.[2]

Deep sky objects

Towards the north of the constellation are globular clusters NGC 5824 and NGC 5986, and close by the dark nebula B 228. To the south are two open clusters, NGC 5822 and NGC 5749, as well as globular cluster NGC 5927 on the eastern border with Norma. On the western border are two spiral galaxies and the Wolf-Rayet planetary nebula IC 4406, containing some of the hottest stars in existence. Another planetary nebula, NGC 5882, is towards the centre of the constellation. The transiting exoplanet Lupus-TR-3b lies in this constellation. The historic supernova SN 1006 is described by various sources as appearing on April 30 to May 1, 1006, in the constellation of Lupus.

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