δ Andromedae (delta Andromedae)

δ Andromedae is a multiple giant star in the constellation of Andromeda.

δ Andromedae visual magnitude is 3.27. Because of its moderate brightness, δ 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 δ Andromedae:

Color of δ Andromedae ⬤

Magnitude of δ Andromedae 3.27

Class Giant

VISIBILITY RIGHT NOW δ Andromedae (delta Andromedae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 53°.

Celestial coordinates and finder chart of δ Andromedae

δ 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 δ Andromedae are provided in the following table:

Right Ascension J2000 00h 39m 19s

Declination J2000 +30° 51’ 38”

Galactic Longitude 119.87°

Galactic Latitude -31.94°

Constellation Andromeda

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

Finder chart δ Andromedae (delta Andromedae) star

Simplified finder chart for δ Andromedae (delta Andromedae).

Visibility of δ Andromedae from your location

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

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

Azimuth: 59.1° RISE 4:05

Max altitude: 69.4° TRANSIT 13:16

Azimuth: 300.9° SET 22:28

RIGHT NOW δ Andromedae (delta Andromedae) is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of δ Andromedae

The image below is a photograph of δ 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 δ Andromedae is 0.136 arcsec per year in Right Ascension and -0.091 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of δ Andromedae (delta Andromedae) star

DSS2 image of δ Andromedae. The red arrow shows the motion of δ Andromedae during the next 1000 years (2.27 arcmin in Right Ascension and -1.52 arcmin in declination);

Distance of δ Andromedae from the Sun and relative movement

δ Andromedae is distant 101.27 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

Distance (parsec) 31.07 pc

Distance (light year) 101.27 ly

Heliocentric radial velocity -7 km/s

Proper Motion RA 0.136 arcsec/year

Proper Motion Dec -0.091 arcsec/year

Spectral properties of δ Andromedae

δ Andromedae belongs to spectral class K3 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude 0.81

Spectral Type K3III

Color Index (B-V) 1.28

Temperature of δ Andromedae 4158K

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

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

δ Andromedae star system properties

δ 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 δ Andromedae double sysyem:

Main star magnitude 3.27

Secondary star magnitude 11.47

Magnitude difference 8.2

Separation 28.7 arcsec

Alternative designations of δ Andromedae

Bayer designation δ Andromedae
(delta Andromedae)

Flamsteed designation 31 Andromedae

Henry Draper Catalogue HD3627

SAO Catalogue SAO54058

Hipparcos Catalogue HIP3092

Durchmusterung Catalogue BD+30 91

FK5 Catalogue 20

Aitken Double Star Catalogue ADS548

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Other stars in Andromeda