Ursa Minor

{| border="1" align="right" width="330"\n|-\n| align=center colspan=2 bgcolor=silver style="padding-top: 1.5ex; padding-bottom: 1ex" | Ursa Minor\n|-\n| align=center colspan=2 |\n
\nlarger map\n|-\n| Abbreviation\n| UMi\n|-\n| Genitive\n| Ursae Minoris\n|-\n| Meaning in English\n| Smaller Bear\n|-\n| Right ascension\n| 15 h\n|-\n| Declination\n| 70°\n|-\n| Visible to latitude\n| Between 90° and −10°\n|-\n| Best visible\n| June\n|-\n| Area
 - Total\n| Ranked 56th
256 sq. deg.\n|-\n| Number of stars with
apparent magnitude < 3\n| 2\n|-\n| Brightest star
 - Apparent magnitude\n| Polaris
2.02\n|-\n| Meteor showers\n|\n*Ursids\n|-\n| Bordering constellations\n|\n*Draco\n*Camelopardalis\n*Cepheus\n|} Ursa Minor is a constellation in the northern sky, the name of which means "Smaller Bear" in Latin. It is one of the 88 modern constellations, and was also one of the 48 listed by Ptolemy. It is notable as the location of the north celestial pole, although this will change after some centuries due to the effects of precession.

Table of contents

1 Notable features 2 Mythology 3 History

Notable features

Ursa Minor contains an asterism colloquially known as the "Little Dipper" because its brightest stars seem to form a ladle, or dipper shape. The star at the end of the dipper handle is Polaris, the "North" or "Pole Star".\nPolaris can also be found by following a line through the two stars which form the end of the "bowl" of the Big Dipper, a nearby asterism found in the constellation Ursa Major. The two brightest stars are:\n*Polaris (α UMi): a yellow supergiant of spectral type F7 and an apparent brightness of 2.02m\n*Kochab (β UMi): a giant orange star; spectral type K4; brightness 2.08

Mythology

One of Artemis' companions, Callisto, lost her virginity to Zeus, who had come disguised as Artemis. Enraged, Artemis changed her into a bear. Callisto's son, Arcas, nearly killed his mother while hunting, but Zeus or Artemis stopped him and placed them both in the sky as Ursa Major and Ursa Minor. Hera was not pleased with the placement of Callisto and Arcas in the sky, so she asked her nurse, Tethys, to help. Tethys, a marine goddess, cursed the constellations to forever circle the sky and never drop below the horizon, hence explaining why they are circumpolar.

History

This constellation is said to have been introduced in the 6th century B.C by the Greek astronomer Thales of Miletus,\nbut was certainly already used as a guide by sailors.\nIn ancient time, Ursa Minor was named the Dragon's wing, an old constellation, now long forgotten.\nTo many cultures Ursa Minor was the Hole in which the earth's axle found its bearing. \nCategory:Constellations\n \n \n \n \n \n \n