18 Andromedae

Above the horizon. Rise: 20:14 | Tran: 6:43 | Set: 17:17

Alt: 41.83° Az: 308.45° Direction: South-South-West

18 Andromedae is a main-sequence star of spectral class B9 in the constellation of Andromeda.

18 Andromedae visual magnitude is 5.3. Because of its faintness, 18 Andromedae is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of 18 Andromedae. The red arrow shows the motion of 18 Andromedae during the next 10000 years (-2.83 arcmin in Right Ascension and -0.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 23h 40m 22s

Declination +50° 36’ 46”

Hour Angle 04h 27m 28s

Sidereal Time 04h 07m 51s

J2000

Right Ascension 23h 39m 08s

Declination +50° 28’ 18”

Galactic Coordinates

Galactic Longitude 111.34°

Galactic Latitude -10.77°

Finder Chart

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Finder chart for 18 Andromedae.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.3

Class Main-sequence

Absolute magnitude -0.09

Spectral Type B9V

Color Index (B-V) -0.06

Temperature 10941K

The red dot in the diagram below shows where 18 Andromedae is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 18 Andromedae. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

18 Andromedae is distant 389.95 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

Distance (parsec) 119.62

Distance (light year) 389.95

Radial Speed 9 km/s

Proper Motion RA -0.017 arcsec/y

Proper Motion Dec -0.002"/y

Alternative Designations

Flamsteed designation 18 Andromedae

Henry Draper Catalogue HD222304

SAO Catalogue SAO35642

Hipparcos Catalogue HIP116709

Durchmusterung Catalogue BD+49 4180

FK5 Catalogue 3897

Visibility from Your Location

Today's 18 Andromedae rise, transit and set times from San Jose, United States are the following (all times relative to the local timezone America/Los_Angeles):

Azimuth: 39.4° RISE 20:14

Max altitude: 76.7° TRANSIT 6:43

Azimuth: 320.6° SET 17:17

Name:	San Jose, United States
Latitude:	37° 20' 21.8" N
Longitude:	121° 53' 42.0" W
Timezone:	America/Los_Angeles

Set Location

Other stars in Andromeda