ζ2 Aquarii (zeta2 Aquarii)

ζ2 Aquarii is a multiple main-sequence star in the constellation of Aquarius.

ζ2 Aquarii visual magnitude is 4.42. Because of its moderate brightness, ζ2 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 ζ2 Aquarii:

Color of ζ2 Aquarii ⬤

Magnitude of ζ2 Aquarii 4.42

Class Main-sequence

VISIBILITY RIGHT NOW ζ2 Aquarii (zeta2 Aquarii) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of ζ2 Aquarii

ζ2 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 ζ2 Aquarii are provided in the following table:

Right Ascension J2000 22h 28m 50s

Declination J2000 -00° 01’ 12”

Galactic Longitude 65.35°

Galactic Latitude -46.33°

Constellation Aquarius

The simplified sky map below shows the position of ζ2 Aquarii in the sky:

Finder chart ζ2 Aquarii (zeta2 Aquarii) star

Simplified finder chart for ζ2 Aquarii (zeta2 Aquarii).

Visibility of ζ2 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 ζ2 Aquarii (zeta2 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: 90.0° RISE 0:53

Max altitude: 38.5° TRANSIT 6:54

Azimuth: 270.0° SET 12:52

RIGHT NOW ζ2 Aquarii (zeta2 Aquarii) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of ζ2 Aquarii

The image below is a photograph of ζ2 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 ζ2 Aquarii is 0.209 arcsec per year in Right Ascension and 0.042 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ζ2 Aquarii (zeta2 Aquarii) star

DSS2 image of ζ2 Aquarii. The red arrow shows the motion of ζ2 Aquarii during the next 1000 years (3.48 arcmin in Right Ascension and 0.70 arcmin in declination);

Spectral properties of ζ2 Aquarii

ζ2 Aquarii belongs to spectral class F3 and has a luminosity class of V corresponding to a main-sequence star.

Spectral Type F3V

Color Index (B-V) 0.38

Temperature of ζ2 Aquarii 6989K

ζ2 Aquarii star system properties

ζ2 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 ζ2 Aquarii double sysyem:

Main star magnitude 4.42

Secondary star magnitude 4.62

Magnitude difference 0.2

Separation 1.8 arcsec

Alternative designations of ζ2 Aquarii

Bayer designation ζ2 Aquarii
(zeta2 Aquarii)

Flamsteed designation 55 Aquarii

Henry Draper Catalogue HD213052

SAO Catalogue SAO146108

Durchmusterung Catalogue BD-00 4365

Aitken Double Star Catalogue ADS15971

In Evidence