Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]

HR8989

HR8989 is a double giant star in the constellation of Cassiopeia.

HR8989 visual magnitude is 6.56. Because of its reltive faintness, HR8989 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 HR8989:

6.56
Giant
HR8989 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 27°.

Celestial coordinates and finder chart of HR8989

HR8989 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8989 are provided in the following table:

23h 42m 20s
+64° 30’ 56”
115.58°
2.63°
Cassiopeia

The simplified sky map below shows the position of HR8989 in the sky:

Finder chart HR8989 star
Simplified finder chart for HR8989.

Visibility of HR8989 from your location

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

HR8989 is circumpolar and transits at 14:32 UTC (altitude: 77.0°)

Digitized Sky Survey image of HR8989

The image below is a photograph of HR8989 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 HR8989 is 0.003 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR8989 star
DSS2 image of HR8989. The red arrow shows the motion of HR8989 during the next 100000 years (5.00 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR8989 from the Sun and relative movement

HR8989 is distant 1,341.56 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

411.52 pc
1,341.56 ly
-3 km/s
0.003 arcsec/year
-0.002 arcsec/year

Spectral properties of HR8989

HR8989 belongs to spectral class M2 and has a luminosity class of III corresponding to a giant star.

-1.51
M2III
3299K

The red dot in the diagram below shows where HR8989 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8989. Attribution: Richard Powell / CC BY-SA

HR8989 star system properties

HR8989 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 HR8989 double sysyem:

6.56
10.96
4.4
2.6 arcsec

Alternative designations of HR8989

SAO20791
SAO20791