2 Centauri

Below the horizon. Rise: 18:54 | Tran: 20:53 | Set: 22:53

Alt: -73.09° Az: 358.15° Direction: North

2 Centauri is a variable giant star of spectral class M4 in the constellation of Centaurus.

2 Centauri visual magnitude is 4.19. Because of its moderate brightness, 2 Centauri is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of 2 Centauri. The red arrow shows the motion of 2 Centauri during the next 10000 years (-7.00 arcmin in Right Ascension and -9.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 50m 55s

Declination -34° 34’ 35”

Hour Angle 11h 57m 23s

Sidereal Time 01h 48m 19s

J2000

Right Ascension 13h 49m 26s

Declination -34° 27’ 02”

Galactic Coordinates

Galactic Longitude 316.32°

Galactic Latitude 26.91°

Finder Chart

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Finder chart for 2 Centauri.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.19

Class Giant

Absolute magnitude 0.51

Spectral Type M4III

Color Index (B-V) 1.5

Temperature 3794K

The red dot in the diagram below shows where 2 Centauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 2 Centauri. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

2 Centauri is distant 177.27 light years from the Sun and it is moving far from the Sun at the speed of 41 kilometers per second.

Distance (parsec) 54.38

Distance (light year) 177.27

Radial Speed 41 km/s

Proper Motion RA -0.042 arcsec/y

Proper Motion Dec -0.057"/y

Alternative Designations

Flamsteed designation 2 Centauri

Henry Draper Catalogue HD120323

SAO Catalogue SAO204875

Hipparcos Catalogue HIP67457

Durchmusterung Catalogue CD-33 9358

General Catalogue of Variable Stars V806 Cen

Visibility from Your Location

Today's 2 Centauri rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 124.6° RISE 18:54

Max altitude: 3.9° TRANSIT 20:53

Azimuth: 235.4° SET 22:53

Set Location

Other stars in Centaurus