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Sky-Tonight.com / Constellations / Ursa Minor
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Observation Settings

Or select it on the map:
This Earth map lets you select the observer’s location used to calculate the bearing and elevation of celestial objects. The selected point determines how the sky, rise and set times, and object positions are shown.
Your location: Santa Clara, United States
Timezone:
Latitude:
37.3541
Longitude:
-121.955

Ursa Minor Constellation

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Ursa Minor, the little bear, contains the Little Dipper asterism and Polaris, the current North Star.

Ursa Minor (The Little Bear)

Ursa Minor, or "The Little Bear," is a prominent constellation in the northern sky. It is best known for containing Polaris, the North Star, which has served as a celestial guide for navigators for centuries. The constellation is closely associated with Ursa Major and shares similar mythological and cultural significance.

Key Features

  • Bright Stars: Ursa Minor is formed by several key stars that trace the shape of a small bear:
    • Polaris: The brightest star in Ursa Minor, located nearly directly above Earth's North Pole, making it an essential navigation tool.
    • Kochab: The second-brightest star, once used as a pole star over 3,000 years ago.
    • Pherkad: Often paired with Kochab, these stars are sometimes called the "Guardians of the Pole."
  • Asterism: The constellation contains a small dipper-shaped pattern, known as the "Little Dipper," which is less prominent than the Big Dipper in Ursa Major.

Mythological Background

In Greek mythology, Ursa Minor is often associated with Arcas, the son of Callisto. According to the myth, after Arcas was transformed into a bear to join his mother, Callisto (Ursa Major), they were placed in the sky by Zeus to protect them from harm. Together, they form the Great and Little Bears.

Other interpretations see Ursa Minor as a young bear following its parent, represented by Ursa Major. The constellation’s small size and connection to the North Star made it a symbol of guidance and protection in many cultures.

Cultural Significance

Ursa Minor is an essential constellation for navigation due to Polaris, which has historically been used by sailors, travelers, and astronomers to find true north. This made the constellation a critical tool for orienting oneself, particularly in the Northern Hemisphere.

The "Little Dipper" asterism, though less bright than the Big Dipper, remains one of the most recognizable star patterns in the sky. Ursa Minor's association with constancy and stability has cemented its place in cultural traditions and astronomical studies.

Ursa Minor Rise and Set Timetable

TimeElevation
Ursa Minor is always above the horizon
Moonrise, 21% illuminated 09:4935°
Ursa Minor transit16:2647°
Sunset17:5546°
Civil sunset18:2446°
Astronomical observing session begins18:5745°
Ursa Minor is always above the horizon
Moonset20:2642°
Astronomical observing session ends03:2628°
Civil sunrise03:5927°
Sunrise04:2827°

Track Ursa Minor Position Throughout the Night

← 18 August 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe Ursa Minor changing position in the night sky.

Nebulae in the constellation Ursa Minor

NGC5144

Galaxy Pair

NGC5144
↗ - ↘ - ↑ 44°
☼ - ✣ 1.10"
NGC5144 is a galaxy pair with apparent magnitude in the constellation Ursa Minor, spanning approximately 1.1 arcseconds in the sky.
More about NGC5144

NGC5385

Open Cluster

NGC5385
↗ - ↘ - ↑ 44°
☼ - ✣ "
NGC5385 is an open cluster with apparent magnitude in the constellation Ursa Minor.
More about NGC5385

Annual motion of Ursa Minor

Time
DateTue, 18 August 2026
Twilight start19:28
Twilight end02:44
Twilight duration7h 17m
RiseUrsa Minor is always up
SetUrsa Minor is always up
Elevation at transit47°
Transit time16:22
Equatorial coordinatesRA: 15h 04m 48s", Dec: 80° 00' 48s
Magnitude-
Constellation
The graph illustrates the constellation’s annual visibility pattern and its daily rise, set, and transit times throughout the year.
The vertical axis shows the hours of the day, while the horizontal axis spans the days of the year.
The reddish area marks when the constellation is above the horizon. The white line shows when it reaches its highest point in the sky. View detailed visibility information in a table with rise, transit, and set times for each date.

Acknowledgements

We gratefully acknowledge the International Astronomical Union (IAU) for defining and standardizing the official constellation boundaries used in celestial mapping.

Special thanks to Sky & Telescope Magazine and contributors Roger Sinnott and Rick Fienberg for producing the charts and tables. Alan MacRobert’s constellation patterns were influenced by the work of H. A. Rey and adjusted to align with earlier traditions.