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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sunny DaytimeWhat's Visible Now?
All Constellations » Aquarius » 

108 Aquarii

Altitude: -22.2°   Azimuth: 92.8°   Direction: East

108 Aquarii is a variable star in the constellation of Aquarius.

108 Aquarii visual magnitude is 5.18. Because of its reltive faintness, 108 Aquarii 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 108 Aquarii:


108 Aquarii is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -22.2°
Azimuth: 92.8°
Direction: East

Celestial coordinates and finder chart of 108 Aquarii

108 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 108 Aquarii are provided in the following table:

23h 51m 21s
-18° 54’ 32”

The simplified sky map below shows the position of 108 Aquarii in the sky:

Finder chart 108 Aquarii star
Simplified finder chart for 108 Aquarii.

Visibility of 108 Aquarii from your location

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

Today's 108 Aquarii rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 108.9°
Max altitude: 19.6°
Azimuth: 251.1°

Digitized Sky Survey image of 108 Aquarii

The image below is a photograph of 108 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 108 Aquarii is 0.021 arcsec per year in Right Ascension and 0 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 108 Aquarii star
DSS2 image of 108 Aquarii. The red arrow shows the motion of 108 Aquarii during the next 10000 years (3.50 arcmin in Right Ascension and 0.00 arcmin in declination);

Distance of 108 Aquarii from the Sun and relative movement

108 Aquarii is distant 320.87 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

98.43 pc
320.87 ly
13 km/s
0.021 arcsec/year

Spectral properties of 108 Aquarii

108 Aquarii belongs to spectral class B9 108 Aquarii is also a SiSrCr chemically peculiar star.


The red dot in the diagram below shows where 108 Aquarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 108 Aquarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of 108 Aquarii

108 Aquarii