Your Guide to the Solar System and the Night Sky
Donate now! You'll help cover server costs, enhance the site and keep it ad-free.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:43  
clear_day Transit: 12:58  
SunsetSet: 21:12 south
sunny DaytimeWhat's Visible Now
All Constellations » Virgo » 


Altitude: 13.2°   Azimuth: 106.2°   Direction: East-South-East

HR4580 is a double sub-giant star in the constellation of Virgo.

HR4580 visual magnitude is 6.17. Because of its reltive faintness, HR4580 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 HR4580:


HR4580 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 13.2°
Azimuth: 106.2°
Direction: East-South-East

Celestial coordinates and finder chart of HR4580

HR4580 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4580 are provided in the following table:

11h 59m 03s
+00° 31’ 50”

The simplified sky map below shows the position of HR4580 in the sky:

Finder chart HR4580 star
Simplified finder chart for HR4580.

Visibility of HR4580 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 HR4580 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: 89.5°
Max altitude: 39.1°
Azimuth: 270.5°
HR4580 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR4580

The image below is a photograph of HR4580 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 HR4580 is -0.061 arcsec per year in Right Ascension and 0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4580 star
DSS2 image of HR4580. The red arrow shows the motion of HR4580 during the next 10000 years (-10.17 arcmin in Right Ascension and 4.50 arcmin in declination);

Distance of HR4580 from the Sun and relative movement

HR4580 is distant 597.07 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

183.15 pc
597.07 ly
12 km/s
-0.061 arcsec/year
0.027 arcsec/year

Spectral properties of HR4580

HR4580 belongs to spectral class K2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR4580 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4580. Attribution: Richard Powell / CC BY-SA

HR4580 star system properties

HR4580 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4580 double sysyem:

14.2 arcsec

Alternative designations of HR4580