ζ Andromedae (zeta Andromedae)

ζ Andromedae is a variable and multiple bright giant star in the constellation of Andromeda.

ζ Andromedae visual magnitude is 4.06. Because of its moderate brightness, ζ Andromedae 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 ζ Andromedae:

Color of ζ Andromedae ⬤

Magnitude of ζ Andromedae 4.06

Class Bright giant

VISIBILITY RIGHT NOW ζ Andromedae (zeta Andromedae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 46°.

Celestial coordinates and finder chart of ζ Andromedae

ζ Andromedae 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 ζ Andromedae are provided in the following table:

Right Ascension J2000 00h 47m 20s

Declination J2000 +24° 16’ 01”

Galactic Longitude 121.74°

Galactic Latitude -38.59°

Constellation Andromeda

The simplified sky map below shows the position of ζ Andromedae in the sky:

Finder chart ζ Andromedae (zeta Andromedae) star

Simplified finder chart for ζ Andromedae (zeta Andromedae).

Visibility of ζ Andromedae from your location

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

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

Azimuth: 65.7° RISE 5:09

Max altitude: 62.8° TRANSIT 13:24

Azimuth: 294.3° SET 21:39

RIGHT NOW ζ Andromedae (zeta Andromedae) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of ζ Andromedae

The image below is a photograph of ζ Andromedae 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 ζ Andromedae is -0.1 arcsec per year in Right Ascension and -0.083 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ζ Andromedae (zeta Andromedae) star

DSS2 image of ζ Andromedae. The red arrow shows the motion of ζ Andromedae during the next 1000 years (-1.67 arcmin in Right Ascension and -1.38 arcmin in declination);

Distance of ζ Andromedae from the Sun and relative movement

ζ Andromedae is distant 181.31 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

Distance (parsec) 55.62 pc

Distance (light year) 181.31 ly

Heliocentric radial velocity -24 km/s

Proper Motion RA -0.1 arcsec/year

Proper Motion Dec -0.083 arcsec/year

Spectral properties of ζ Andromedae

ζ Andromedae belongs to spectral class K1 and has a luminosity class of II corresponding to a bright giant star.

Absolute magnitude 0.33

Spectral Type K1II

Color Index (B-V) 1.12

Temperature of ζ Andromedae 4472K

The red dot in the diagram below shows where ζ Andromedae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of ζ Andromedae. Attribution: Richard Powell / CC BY-SA

ζ Andromedae star system properties

ζ Andromedae is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the ζ Andromedae double sysyem:

Main star magnitude 4.06

Secondary star magnitude 9.66

Magnitude difference 5.6

Separation 162.7 arcsec

Alternative designations of ζ Andromedae

Bayer designation ζ Andromedae
(zeta Andromedae)

Flamsteed designation 34 Andromedae

Henry Draper Catalogue HD4502

SAO Catalogue SAO74267

Hipparcos Catalogue HIP3693

Durchmusterung Catalogue BD+23 106

FK5 Catalogue 27

General Catalogue of Variable Stars Zet And

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