12 Andromedae

12 Andromedae is a multiple main-sequence star in the constellation of Andromeda.

12 Andromedae visual magnitude is 5.77. Because of its reltive faintness, 12 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 12 Andromedae:

Color of 12 Andromedae ⬤

Magnitude of 12 Andromedae 5.77

Class Main-sequence

VISIBILITY RIGHT NOW 12 Andromedae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 1°.

Celestial coordinates and finder chart of 12 Andromedae

12 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 12 Andromedae are provided in the following table:

Right Ascension J2000 23h 20m 53s

Declination J2000 +38° 10’ 55”

Galactic Longitude 103.98°

Galactic Latitude -21.33°

Constellation Andromeda

The simplified sky map below shows the position of 12 Andromedae in the sky:

Simplified finder chart for 12 Andromedae.

Visibility of 12 Andromedae from your location

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

Today's 12 Andromedae rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 51.8° RISE 23:41

Max altitude: 76.7° TRANSIT 11:06

Azimuth: 308.2° SET 22:26

RIGHT NOW 12 Andromedae is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 12 Andromedae

The image below is a photograph of 12 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 12 Andromedae is 0.13 arcsec per year in Right Ascension and -0.063 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 12 Andromedae. The red arrow shows the motion of 12 Andromedae during the next 1000 years (2.17 arcmin in Right Ascension and -1.05 arcmin in declination);

Distance of 12 Andromedae from the Sun and relative movement

12 Andromedae is distant 138.19 light years from the Sun and it is moving towards the Sun at the speed of 9 kilometers per second.

Distance (parsec) 42.39 pc

Distance (light year) 138.19 ly

Heliocentric radial velocity -9 km/s

Proper Motion RA 0.13 arcsec/year

Proper Motion Dec -0.063 arcsec/year

Spectral properties of 12 Andromedae

12 Andromedae belongs to spectral class F5 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 2.63

Spectral Type F5V

Color Index (B-V) 0.46

Temperature of 12 Andromedae 6576K

The red dot in the diagram below shows where 12 Andromedae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 12 Andromedae. Attribution: Richard Powell / CC BY-SA

12 Andromedae star system properties

12 Andromedae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 12 Andromedae double sysyem:

Main star magnitude 5.77

Secondary star magnitude 9.17

Magnitude difference 3.4

Separation 121.1 arcsec

Alternative designations of 12 Andromedae

Flamsteed designation 12 Andromedae

Henry Draper Catalogue HD220117

SAO Catalogue SAO73190

Hipparcos Catalogue HIP115280

Durchmusterung Catalogue BD+37 4817

FK5 Catalogue 1610

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Other stars in Andromeda