Yildun - δ Ursae Minoris (delta Ursae Minoris)
Yildun, also designated as δ Ursae Minoris (delta Ursae Minoris), is a main-sequence star in the constellation of Ursa Minor.
Yildun visual magnitude is 4.36. Because of its moderate brightness, Yildun should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.
The table below summarizes the key facts about Yildun:
Celestial coordinates and finder chart of Yildun
Yildun is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of Yildun are provided in the following table:
The simplified sky map below shows the position of Yildun in the sky:
Visibility of Yildun from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Yildun - δ Ursae Minoris (delta Ursae Minoris) is circumpolar and transits at 05:02 UTC (altitude: 54.9°)
Digitized Sky Survey image of Yildun
The image below is a photograph of Yildun from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of Yildun is 0.009 arcsec per year in Right Ascension and 0.056 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Distance of Yildun from the Sun and relative movement
Yildun is distant 182.63 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.
Spectral properties of Yildun
Yildun belongs to spectral class A1 and has a luminosity class of V corresponding to a main-sequence star.
The red dot in the diagram below shows where Yildun is situated in the Hertzsprung–Russell diagram.