23 Andromedae

Altitude: 65.9° Azimuth: 103.1° Direction: East-South-East

23 Andromedae is a hypergiant star in the constellation of Andromeda.

23 Andromedae visual magnitude is 5.72. Because of its reltive faintness, 23 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 23 Andromedae:

Color of 23 Andromedae ⬤

Magnitude of 23 Andromedae 5.72

Class Hypergiant

VISIBILITY RIGHT NOW

23 Andromedae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 65.9°
Azimuth: 103.1°
Direction: East-South-East

Celestial coordinates and finder chart of 23 Andromedae

23 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 23 Andromedae are provided in the following table:

Right Ascension J2000 00h 13m 30s

Declination J2000 +41° 02’ 07”

Galactic Longitude 115.27°

Galactic Latitude -21.27°

Constellation Andromeda

The simplified sky map below shows the position of 23 Andromedae in the sky:

Simplified finder chart for 23 Andromedae.

Visibility of 23 Andromedae from your location

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

23 Andromedae is circumpolar and transits at 19:08 UTC (altitude: 79.6°)

Digitized Sky Survey image of 23 Andromedae

The image below is a photograph of 23 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 23 Andromedae is -0.123 arcsec per year in Right Ascension and -0.148 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of 23 Andromedae. The red arrow shows the motion of 23 Andromedae during the next 1000 years (-2.05 arcmin in Right Ascension and -2.47 arcmin in declination);

Distance of 23 Andromedae from the Sun and relative movement

23 Andromedae is distant 114.11 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.

Distance (parsec) 35.00 pc

Distance (light year) 114.11 ly

Heliocentric radial velocity -29 km/s

Proper Motion RA -0.123 arcsec/year

Proper Motion Dec -0.148 arcsec/year

Spectral properties of 23 Andromedae

23 Andromedae belongs to spectral class F0 and has a luminosity class of IV corresponding to a hypergiant star.

Absolute magnitude 3.00

Spectral Type F0IV

Color Index (B-V) 0.31

Temperature of 23 Andromedae 7399K

The red dot in the diagram below shows where 23 Andromedae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 23 Andromedae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 23 Andromedae

Flamsteed designation 23 Andromedae

Henry Draper Catalogue HD905

SAO Catalogue SAO36173

Hipparcos Catalogue HIP1086

Durchmusterung Catalogue BD+40 29

FK5 Catalogue 2010

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In Evidence

Other stars in Andromeda