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🌎 Location: Greenwich, United Kingdom [change]

ψ3 Aquarii (psi3 Aquarii)

ψ3 Aquarii is a variable and multiple hypergiant star in the constellation of Aquarius.

ψ3 Aquarii visual magnitude is 4.98. Because of its moderate brightness, ψ3 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 ψ3 Aquarii:

4.98
Hypergiant
ψ3 Aquarii (psi3 Aquarii) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of ψ3 Aquarii

ψ3 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 ψ3 Aquarii are provided in the following table:

23h 18m 57s
-09° 36’ 38”
67.31°
-62.02°
Aquarius

The simplified sky map below shows the position of ψ3 Aquarii in the sky:

Finder chart ψ3 Aquarii (psi3 Aquarii) star
Simplified finder chart for ψ3 Aquarii (psi3 Aquarii).

Visibility of ψ3 Aquarii from your location

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

Today's ψ3 Aquarii (psi3 Aquarii) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 99.6°
Max altitude: 28.9°
Azimuth: 260.4°
ψ3 Aquarii (psi3 Aquarii) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of ψ3 Aquarii

The image below is a photograph of ψ3 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 ψ3 Aquarii is 0.047 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ψ3 Aquarii (psi3 Aquarii) star
DSS2 image of ψ3 Aquarii. The red arrow shows the motion of ψ3 Aquarii during the next 10000 years (7.83 arcmin in Right Ascension and -0.33 arcmin in declination);

Distance of ψ3 Aquarii from the Sun and relative movement

ψ3 Aquarii is distant 248.85 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

76.34 pc
248.85 ly
-10 km/s
0.047 arcsec/year
-0.002 arcsec/year

Spectral properties of ψ3 Aquarii

ψ3 Aquarii belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

0.57
A0V
10382K

The red dot in the diagram below shows where ψ3 Aquarii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ψ3 Aquarii. Attribution: Richard Powell / CC BY-SA

ψ3 Aquarii star system properties

ψ3 Aquarii is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the ψ3 Aquarii double sysyem:

4.98
8.88
3.9
1.4 arcsec

Alternative designations of ψ3 Aquarii

ψ3 Aquarii
(psi3 Aquarii)
SAO146635
SAO146635