Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:45  
clear_day Transit: 12:57  
SunsetSet: 21:10 south
wb_twilight Nautical TwilightWhat's Visible Now
All Constellations » Aquarius » 

45 Aquarii

Altitude: 15.9°   Azimuth: 137.9°   Direction: South-East

45 Aquarii is a giant star in the constellation of Aquarius.

45 Aquarii visual magnitude is 5.95. Because of its reltive faintness, 45 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 45 Aquarii:


45 Aquarii is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 15.9°
Azimuth: 137.9°
Direction: South-East

Celestial coordinates and finder chart of 45 Aquarii

45 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 45 Aquarii are provided in the following table:

22h 19m 00s
-13° 18’ 17”

The simplified sky map below shows the position of 45 Aquarii in the sky:

Finder chart 45 Aquarii star
Simplified finder chart for 45 Aquarii.

Visibility of 45 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 45 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: 103.3°
Max altitude: 25.2°
Azimuth: 256.7°
45 Aquarii is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 45 Aquarii

The image below is a photograph of 45 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 45 Aquarii is 0.079 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 45 Aquarii star
DSS2 image of 45 Aquarii. The red arrow shows the motion of 45 Aquarii during the next 10000 years (13.17 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of 45 Aquarii from the Sun and relative movement

45 Aquarii is distant 353.96 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

108.58 pc
353.96 ly
30 km/s
0.079 arcsec/year
-0.012 arcsec/year

Spectral properties of 45 Aquarii

45 Aquarii belongs to spectral class G7


The red dot in the diagram below shows where 45 Aquarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 45 Aquarii. Attribution: Richard Powell / CC BY-SA

Alternative designations of 45 Aquarii