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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: 7:45  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
sleep NighttimeWhat's Visible Now?
All Constellations » Aquarius » 

12 Aquarii

Altitude: -24.4°   Azimuth: 293.0°   Direction: West-North-West

12 Aquarii is a multiple giant star in the constellation of Aquarius.

12 Aquarii visual magnitude is 5.89. Because of its reltive faintness, 12 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 12 Aquarii:


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

Altitude: -24.4°
Azimuth: 293.0°
Direction: West-North-West

Celestial coordinates and finder chart of 12 Aquarii

12 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 12 Aquarii are provided in the following table:

21h 04m 04s
-05° 49’ 23”

The simplified sky map below shows the position of 12 Aquarii in the sky:

Finder chart 12 Aquarii star
Simplified finder chart for 12 Aquarii.

Visibility of 12 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 12 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: 95.8°
Max altitude: 32.7°
Azimuth: 264.2°

Digitized Sky Survey image of 12 Aquarii

The image below is a photograph of 12 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 12 Aquarii is 0.018 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 12 Aquarii star
DSS2 image of 12 Aquarii. The red arrow shows the motion of 12 Aquarii during the next 10000 years (3.00 arcmin in Right Ascension and -1.50 arcmin in declination);

Spectral properties of 12 Aquarii

12 Aquarii belongs to spectral class G4 and has a luminosity class of III corresponding to a giant star.


12 Aquarii star system properties

12 Aquarii 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 12 Aquarii double sysyem:

2.7 arcsec

Alternative designations of 12 Aquarii