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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:49  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Ursa Major » 


Altitude: -1.6°   Azimuth: 339.2°   Direction: North-North-West

HR4584 is a giant star in the constellation of Ursa Major.

HR4584 visual magnitude is 6.5. Because of its reltive faintness, HR4584 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR4584:


HR4584 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -1.6°
Azimuth: 339.2°
Direction: North-North-West

Celestial coordinates and finder chart of HR4584

HR4584 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 HR4584 are provided in the following table:

11h 59m 57s
+34° 02’ 05”
Ursa Major

The simplified sky map below shows the position of HR4584 in the sky:

Finder chart HR4584 star
Simplified finder chart for HR4584.

Visibility of HR4584 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's HR4584 rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 56.0°
Max altitude: 72.6°
Azimuth: 304.0°

Digitized Sky Survey image of HR4584

The image below is a photograph of HR4584 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 HR4584 is -0.064 arcsec per year in Right Ascension and 0.042 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4584 star
DSS2 image of HR4584. The red arrow shows the motion of HR4584 during the next 10000 years (-10.67 arcmin in Right Ascension and 7.00 arcmin in declination);

Distance of HR4584 from the Sun and relative movement

HR4584 is distant 374.28 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

114.81 pc
374.28 ly
-8 km/s
-0.064 arcsec/year
0.042 arcsec/year

Spectral properties of HR4584

HR4584 belongs to spectral class A9 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4584 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4584. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4584