ω Andromedae (omega Andromedae)

ω Andromedae is a multiple sub-giant star in the constellation of Andromeda.

ω Andromedae visual magnitude is 4.83. Because of its moderate brightness, ω 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 ω Andromedae:

Color of ω Andromedae ⬤

Magnitude of ω Andromedae 4.83

Class Sub-giant

VISIBILITY RIGHT NOW ω Andromedae (omega Andromedae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 11°.

Celestial coordinates and finder chart of ω Andromedae

ω Andromedae is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of ω Andromedae are provided in the following table:

Right Ascension J2000 01h 27m 39s

Declination J2000 +45° 24’ 24”

Galactic Longitude 129.56°

Galactic Latitude -17°

Constellation Andromeda

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

Finder chart ω Andromedae (omega Andromedae) star

Simplified finder chart for ω Andromedae (omega Andromedae).

Visibility of ω Andromedae from your location

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

ω Andromedae (omega Andromedae) is circumpolar and transits at 13:16 UTC (altitude: 83.9°)

Digitized Sky Survey image of ω Andromedae

The image below is a photograph of ω 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 ω Andromedae is 0.351 arcsec per year in Right Ascension and -0.107 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of ω Andromedae (omega Andromedae) star

DSS2 image of ω Andromedae. The red arrow shows the motion of ω Andromedae during the next 1000 years (5.85 arcmin in Right Ascension and -1.78 arcmin in declination);

Distance of ω Andromedae from the Sun and relative movement

ω Andromedae is distant 92.27 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

Distance (parsec) 28.30 pc

Distance (light year) 92.27 ly

Heliocentric radial velocity 11 km/s

Proper Motion RA 0.351 arcsec/year

Proper Motion Dec -0.107 arcsec/year

Spectral properties of ω Andromedae

ω Andromedae belongs to spectral class F5 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 2.57

Spectral Type F5IV

Color Index (B-V) 0.42

Temperature of ω Andromedae 6776K

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

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

ω Andromedae star system properties

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

Main star magnitude 4.83

Secondary star magnitude 11.43

Magnitude difference 6.6

Separation 119 arcsec

Alternative designations of ω Andromedae

Bayer designation ω Andromedae
(omega Andromedae)

Flamsteed designation 48 Andromedae

Henry Draper Catalogue HD8799

SAO Catalogue SAO37228

Hipparcos Catalogue HIP6813

Durchmusterung Catalogue BD+44 307

FK5 Catalogue 1040

Aitken Double Star Catalogue ADS1152

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Other stars in Andromeda