Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:51  
clear_day Transit: 12:56  
SunsetSet: 21:00 south
sunny DaytimeWhat's Visible Now
All Constellations » Cygnus » 


HR7589 is a variable supergiant star in the constellation of Cygnus.

HR7589 visual magnitude is 5.62. Because of its reltive faintness, HR7589 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 HR7589:

HR7589 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 16°.

Celestial coordinates and finder chart of HR7589

HR7589 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 HR7589 are provided in the following table:

19h 51m 59s
+47° 01’ 39”

The simplified sky map below shows the position of HR7589 in the sky:

Finder chart HR7589 star
Simplified finder chart for HR7589.

Visibility of HR7589 from your location

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

HR7589 is circumpolar and transits at 03:26 UTC (altitude: 85.5°)

Digitized Sky Survey image of HR7589

The image below is a photograph of HR7589 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 HR7589 is -0.003 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7589 star
DSS2 image of HR7589. The red arrow shows the motion of HR7589 during the next 100000 years (-5.00 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of HR7589 from the Sun and relative movement

HR7589 is distant 14,818.18 light years from the Sun and it is moving towards the Sun at the speed of 6 kilometers per second.

4,545.45 pc
14,818.18 ly
-6 km/s
-0.003 arcsec/year

Spectral properties of HR7589

HR7589 belongs to spectral class O9 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where HR7589 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7589. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7589