ι Andromedae (iota Andromedae)

ι Andromedae is a variable main-sequence star in the constellation of Andromeda.

ι Andromedae visual magnitude is 4.29. Because of its moderate brightness, ι 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 ι Andromedae:

Color of ι Andromedae ⬤

Magnitude of ι Andromedae 4.29

Class Main-sequence

VISIBILITY RIGHT NOW ι Andromedae (iota Andromedae) is above the horizon from Greenwich, United Kingdom [change]. Altitude: 81°.

Celestial coordinates and finder chart of ι Andromedae

ι 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 ι Andromedae are provided in the following table:

Right Ascension J2000 23h 38m 08s

Declination J2000 +43° 16’ 05”

Galactic Longitude 109.03°

Galactic Latitude -17.62°

Constellation Andromeda

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

Finder chart ι Andromedae (iota Andromedae) star

Simplified finder chart for ι Andromedae (iota Andromedae).

Visibility of ι Andromedae from your location

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

ι Andromedae (iota Andromedae) is circumpolar and transits at 11:35 UTC (altitude: 81.8°)

Digitized Sky Survey image of ι Andromedae

The image below is a photograph of ι 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 ι Andromedae is 0.029 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of ι Andromedae (iota Andromedae) star

DSS2 image of ι Andromedae. The red arrow shows the motion of ι Andromedae during the next 10000 years (4.83 arcmin in Right Ascension and -0.17 arcmin in declination);

Distance of ι Andromedae from the Sun and relative movement

ι Andromedae is distant 502.31 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 154.08 pc

Distance (light year) 502.31 ly

Heliocentric radial velocity -1 km/s

Proper Motion RA 0.029 arcsec/year

Proper Motion Dec -0.001 arcsec/year

Spectral properties of ι Andromedae

ι Andromedae belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -1.65

Spectral Type B8V

Color Index (B-V) -0.1

Temperature of ι Andromedae 11573K

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

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

Alternative designations of ι Andromedae

Bayer designation ι Andromedae
(iota Andromedae)

Flamsteed designation 17 Andromedae

Henry Draper Catalogue HD222173

SAO Catalogue SAO53216

Hipparcos Catalogue HIP116631

Durchmusterung Catalogue BD+42 4720

FK5 Catalogue 891

General Catalogue of Variable Stars 14646

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