Ursa Minor

constellation in the northern celestial hemisphere, containing the northern celestial pole

two imaginary points in the sky where the Earth's axis of rotation, indefinitely extended, intersects the imaginary rotating sphere of stars called the celestial sphere

Kochab , Bayer designation Beta Ursae Minoris (β Ursae Minoris, abbreviated β UMi, Beta UMi), is the brightest star in the bowl of the Little Dipper asterism (which is part of the constellation of Ursa Minor), and only slightly fainter than Polaris, the northern pole star and brightest star in Ursa Minor. Kochab is 16 degrees from Polaris and has an apparent visual magnitude of 2.08. The distance to this star from the Sun can be deduced from the parallax measurements made during the Hipparcos mission, yielding a value of .

galaxy

thumb | right | alt=Arcas and Callisto, Sebastiano Ricci (1659–1734). | Arcas and Callisto, Sebastiano Ricci (1659–1734). In Greek mythology, Arcas (; Ancient Greek: Ἀρκάς) was a hunter who became king of Arcadia. He was remembered for having taught people the arts of weaving and baking bread and for spreading agriculture to Arcadia.

galaxy

Seyfert galaxy in the constellation Ursa Minor

spiral galaxy in the constellation Ursa Minor

galaxy

Pherkad , also known as Gamma Ursae Minoris or γ Ursae Minoris, abbreviated Gamma UMi, γ UMi, is a star in the northern constellation of Ursa Minor. Together with Beta Ursae Minoris (Kochab), it forms the end of the dipper pan of the "Little Dipper", which is an asterism forming the tail of the bear. Based upon parallax measurements obtained during the Hipparcos mission, it is approximately from the Sun.

galaxy

galaxy

galaxy

galaxy

spiral galaxy in the constellation Ursa Minor

dwarf elliptical galaxy

Wikimedia list article

Delta Ursae Minoris, Latinized from δ Ursae Minoris, formally named Yildun , is a white-hued star in the northern circumpolar constellation of Ursa Minor, forming the second star in the bear's tail. It is visible to the naked eye with an apparent visual magnitude of 4.36. Based upon an annual parallax shift of 18.95 mas as seen from Earth, it is located 172 light years from the Sun. The star is moving closer to the Sun with a radial velocity of about −8 km/s.

star in the constellation Ursa Minor

star of the Ursa Minor constellation

star in the constellation Ursa Minor

X-ray source

star in the constellation Ursa Minor

star in the constellation Ursa Minor

star in the constellation Ursa Minor

star in the constellation Ursa Minor

star in the constellation Ursa Minor

extrasolar planet

star in the constellation Ursa Minor

star in the constellation Ursa Minor

star in the constellation Ursa Minor

star

star in the constellation Ursa Minor

star in the constellation Ursa Minor

H1504+65 is an enigmatic peculiar star in the constellation Ursa Minor. With a surface temperature of 200,000 K (360,000°F) and an atmosphere composed of carbon, oxygen and 2% neon, it is the second hottest white dwarf ever discovered, with only RX J0439.8−6809 being hotter. It is thought to be the stellar core of a post-asymptotic giant branch star, though its composition is unexplainable by current models of stellar evolution.

Star in the constellation Ursa Minor

star in the constellation Ursa Minor