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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: 7:40  
clear_day Transit: 11:47  
SunsetSet: 15:53 south
sleep NighttimeWhat's Visible Now?
All Constellations » Aquarius » 

107 Aquarii

Altitude: -0.4°   Azimuth: 239.7°   Direction: West-South-West

107 Aquarii is a double giant star in the constellation of Aquarius.

107 Aquarii visual magnitude is 5.29. Because of its reltive faintness, 107 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 107 Aquarii:


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

Altitude: -0.4°
Azimuth: 239.7°
Direction: West-South-West

Celestial coordinates and finder chart of 107 Aquarii

107 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 107 Aquarii are provided in the following table:

23h 46m 00s
-18° 40’ 41”

The simplified sky map below shows the position of 107 Aquarii in the sky:

Finder chart 107 Aquarii star
Simplified finder chart for 107 Aquarii.

Visibility of 107 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 107 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: 108.7°
Max altitude: 19.8°
Azimuth: 251.3°

Digitized Sky Survey image of 107 Aquarii

The image below is a photograph of 107 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 107 Aquarii is 0.134 arcsec per year in Right Ascension and 0.03 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of 107 Aquarii star
DSS2 image of 107 Aquarii. The red arrow shows the motion of 107 Aquarii during the next 1000 years (2.23 arcmin in Right Ascension and 0.50 arcmin in declination);

Distance of 107 Aquarii from the Sun and relative movement

107 Aquarii is distant 212.10 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

65.06 pc
212.10 ly
-2 km/s
0.134 arcsec/year
0.03 arcsec/year

Spectral properties of 107 Aquarii

107 Aquarii belongs to spectral class F2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where 107 Aquarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 107 Aquarii. Attribution: Richard Powell / CC BY-SA

107 Aquarii star system properties

107 Aquarii is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 107 Aquarii double sysyem:

6.6 arcsec

Alternative designations of 107 Aquarii

107 Aquarii