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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: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Hercules » 


Altitude: 76.2°   Azimuth: 152.8°   Direction: South-South-East

HR6531 is a giant star in the constellation of Hercules.

HR6531 visual magnitude is 6.43. Because of its reltive faintness, HR6531 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 HR6531:


HR6531 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 76.2°
Azimuth: 152.8°
Direction: South-South-East

Celestial coordinates and finder chart of HR6531

HR6531 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 HR6531 are provided in the following table:

17h 30m 40s
+38° 52’ 55”

The simplified sky map below shows the position of HR6531 in the sky:

Finder chart HR6531 star
Simplified finder chart for HR6531.

Visibility of HR6531 from your location

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

HR6531 is circumpolar and transits at 12:30 UTC (altitude: 77.4°)

Digitized Sky Survey image of HR6531

The image below is a photograph of HR6531 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 HR6531 is 0.013 arcsec per year in Right Ascension and 0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR6531 star
DSS2 image of HR6531. The red arrow shows the motion of HR6531 during the next 10000 years (2.17 arcmin in Right Ascension and 2.50 arcmin in declination);

Distance of HR6531 from the Sun and relative movement

HR6531 is distant 990.88 light years from the Sun and it is moving towards the Sun at the speed of 27 kilometers per second.

303.95 pc
990.88 ly
-27 km/s
0.013 arcsec/year
0.015 arcsec/year

Spectral properties of HR6531

HR6531 belongs to spectral class F6 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR6531 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6531. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6531