ψ3 Aquarii (psi3 Aquarii)

Altitude: -33.7° Azimuth: 301.0° Direction: West-North-West

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:

Color of ψ3 Aquarii ⬤

Magnitude of ψ3 Aquarii 4.98

Class Hypergiant

VISIBILITY RIGHT NOW

ψ3 Aquarii (psi3 Aquarii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -33.7°
Azimuth: 301.0°
Direction: West-North-West

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:

Right Ascension J2000 23h 18m 57s

Declination J2000 -09° 36’ 38”

Galactic Longitude 67.31°

Galactic Latitude -62.02°

Constellation 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 edit_location_alt
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 edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 99.6° RISE 18:20

Max altitude: 28.9° TRANSIT 23:29

Azimuth: 260.4° SET 4:42

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.

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.

Distance (parsec) 76.34 pc

Distance (light year) 248.85 ly

Heliocentric radial velocity -10 km/s

Proper Motion RA 0.047 arcsec/year

Proper Motion Dec -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.

Absolute magnitude 0.57

Spectral Type A0V

Color Index (B-V) -0.02

Temperature of ψ3 Aquarii 10382K

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

Main star magnitude 4.98

Secondary star magnitude 8.88

Magnitude difference 3.9

Separation 1.4 arcsec

Alternative designations of ψ3 Aquarii

Bayer designation ψ3 Aquarii
(psi3 Aquarii)

Flamsteed designation 95 Aquarii

Henry Draper Catalogue HD219832

SAO Catalogue SAO146635

Hipparcos Catalogue HIP115115

Durchmusterung Catalogue BD-10 6094

FK5 Catalogue 1609

General Catalogue of Variable Stars 14491

Aitken Double Star Catalogue ADS16671

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Other stars in Aquarius