9 Andromedae

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

9 Andromedae visual magnitude is 6.02. Because of its reltive faintness, 9 Andromedae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 9 Andromedae:

Color of 9 Andromedae ⬤

Magnitude of 9 Andromedae 6.02

Class Main-sequence

VISIBILITY RIGHT NOW 9 Andromedae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 16°.

Celestial coordinates and finder chart of 9 Andromedae

9 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 9 Andromedae are provided in the following table:

Right Ascension J2000 23h 18m 23s

Declination J2000 +41° 46’ 24”

Galactic Longitude 104.91°

Galactic Latitude -17.82°

Constellation Andromeda

The simplified sky map below shows the position of 9 Andromedae in the sky:

Simplified finder chart for 9 Andromedae.

Visibility of 9 Andromedae from your location

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

9 Andromedae is circumpolar and transits at 10:44 UTC (altitude: 80.3°)

Digitized Sky Survey image of 9 Andromedae

The image below is a photograph of 9 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 9 Andromedae is -0.006 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of 9 Andromedae. The red arrow shows the motion of 9 Andromedae during the next 10000 years (-1.00 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of 9 Andromedae from the Sun and relative movement

9 Andromedae is distant 472.46 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 144.93 pc

Distance (light year) 472.46 ly

Heliocentric radial velocity -4 km/s

Proper Motion RA -0.006 arcsec/year

Proper Motion Dec -0.012 arcsec/year

Spectral properties of 9 Andromedae

9 Andromedae belongs to spectral class A7 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 0.21

Spectral Type A7V

Color Index (B-V)

Temperature of 9 Andromedae 10125K

The red dot in the diagram below shows where 9 Andromedae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 9 Andromedae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 9 Andromedae

Flamsteed designation 9 Andromedae

Henry Draper Catalogue HD219815

SAO Catalogue SAO52881

Hipparcos Catalogue HIP115065

Durchmusterung Catalogue BD+40 5043

General Catalogue of Variable Stars AN And

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Other stars in Andromeda