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

89 Aquarii

89 Aquarii is a double sub-giant star in the constellation of Aquarius.

89 Aquarii visual magnitude is 4.69. Because of its moderate brightness, 89 Aquarii should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 89 Aquarii:

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

Celestial coordinates and finder chart of 89 Aquarii

89 Aquarii is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 89 Aquarii are provided in the following table:

23h 09m 54s
-22° 27’ 26”

The simplified sky map below shows the position of 89 Aquarii in the sky:

Finder chart 89 Aquarii star
Simplified finder chart for 89 Aquarii.

Visibility of 89 Aquarii from your location

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

Today's 89 Aquarii rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.5°
Max altitude: 16.1°
Azimuth: 247.5°
89 Aquarii is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 89 Aquarii

The image below is a photograph of 89 Aquarii 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 89 Aquarii is 0.026 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 89 Aquarii star
DSS2 image of 89 Aquarii. The red arrow shows the motion of 89 Aquarii during the next 10000 years (4.33 arcmin in Right Ascension and -1.50 arcmin in declination);

Distance of 89 Aquarii from the Sun and relative movement

89 Aquarii is distant 520.77 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

159.74 pc
520.77 ly
-5 km/s
0.026 arcsec/year
-0.009 arcsec/year

Spectral properties of 89 Aquarii

89 Aquarii belongs to spectral class G2 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where 89 Aquarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 89 Aquarii. Attribution: Richard Powell / CC BY-SA

89 Aquarii star system properties

89 Aquarii is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 89 Aquarii double sysyem:

0.4 arcsec

Alternative designations of 89 Aquarii

Wo 9812 A