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🌎  Greenwich, United Kingdom [change]


HR8689 is a double hypergiant star in the constellation of Tucana.

HR8689 visual magnitude is 6.12. Because of its reltive faintness, HR8689 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 HR8689:

HR8689 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR8689

HR8689 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8689 are provided in the following table:

22h 52m 09s
-63° 11’ 18”

The simplified sky map below shows the position of HR8689 in the sky:

Finder chart HR8689 star
Simplified finder chart for HR8689.

Visibility of HR8689 from your location

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

HR8689 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR8689

The image below is a photograph of HR8689 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 HR8689 is 0.016 arcsec per year in Right Ascension and -0.04 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8689 star
DSS2 image of HR8689. The red arrow shows the motion of HR8689 during the next 10000 years (2.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of HR8689 from the Sun and relative movement

HR8689 is distant 400.98 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

123.00 pc
400.98 ly
-4 km/s
0.016 arcsec/year
-0.04 arcsec/year

Spectral properties of HR8689

HR8689 belongs to spectral class K0 and has a luminosity class of III corresponding to a hypergiant star.


The red dot in the diagram below shows where HR8689 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR8689. Attribution: Richard Powell / CC BY-SA

HR8689 star system properties

HR8689 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR8689 double sysyem:

0.9 arcsec

Alternative designations of HR8689