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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: 7:43  
clear_day Transit: 11:47  
SunsetSet: 15:52 south
sunny DaytimeWhat's Visible Now?
All Constellations » Hercules » 


Altitude: 46.4°   Azimuth: 279.7°   Direction: West

HR6091 is a double sub-giant star in the constellation of Hercules.

HR6091 visual magnitude is 5.46. Because of its reltive faintness, HR6091 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 HR6091:


HR6091 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 46.4°
Azimuth: 279.7°
Direction: West

Celestial coordinates and finder chart of HR6091

HR6091 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 HR6091 are provided in the following table:

16h 19m 55s
+39° 42’ 30”

The simplified sky map below shows the position of HR6091 in the sky:

Finder chart HR6091 star
Simplified finder chart for HR6091.

Visibility of HR6091 from your location

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

HR6091 is circumpolar and transits at 11:35 UTC (altitude: 78.2°)

Digitized Sky Survey image of HR6091

The image below is a photograph of HR6091 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 HR6091 is -0.132 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR6091 star
DSS2 image of HR6091. The red arrow shows the motion of HR6091 during the next 1000 years (-2.20 arcmin in Right Ascension and 0.07 arcmin in declination);

Distance of HR6091 from the Sun and relative movement

HR6091 is distant 87.42 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.

26.82 pc
87.42 ly
-29 km/s
-0.132 arcsec/year
0.004 arcsec/year

Spectral properties of HR6091

HR6091 belongs to spectral class F3 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR6091 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6091. Attribution: Richard Powell / CC BY-SA

HR6091 star system properties

HR6091 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR6091 double sysyem:

2.2 arcsec

Alternative designations of HR6091

Wo 9557 A