We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
Help keep this site free and ads-free: donate now!
public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:43 
Transit: 13:01 
Sunset: 21:18
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Ursa Major » 

HR4275

Above the horizon.  Circumpolar today
Altitude: 21.8°   Azimuth: 329.2°   Direction: North-North-West

HR4275 is a variable hypergiant star of spectral class K0 in the constellation of Ursa Major.

HR4275 visual magnitude is 6.17. Because of its faintness, HR4275 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR4275

Finder chart HR4275 star
Simplified finder chart for HR4275.

HR4275 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4275 are provided in the following table:

10h 59m 17s
+51° 52’ 55”
155.64°
57.53°
Ursa Major
Image of HR4275 star
DSS2 image of HR4275. The red arrow shows the motion of HR4275 during the next 10000 years (-2.00 arcmin in Right Ascension and -0.50 arcmin in declination);

Key facts about HR4275

6.17
Hypergiant

-0.43
K0
3983K

The red dot in the diagram below shows where HR4275 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4275. Attribution: Richard Powell / CC BY-SA

Distance of HR4275 from the Sun and relative movement

HR4275 is distant 680.58 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

208.77 pc
680.58 ly
-7 km/s
-0.012 arcsec/year
-0.003 arcsec/year

Alternative designations of HR4275

SAO27858
SAO27858

Visibility of HR4275 from your location

HR4275 is circumpolar and transits at 16:42 UTC (altitude: 89.6°)