1 Centauri

Below the horizon. Rise: 20:33 | Tran: 22:51 | Set: 1:14

Alt: -54.64° Az: 284.61° Direction: West-North-West

1 Centauri is a variable sub-giant star of spectral class F3 in the constellation of Centaurus.

1 Centauri visual magnitude is 4.23. Because of its moderate brightness, 1 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 1 Centauri. The red arrow shows the motion of 1 Centauri during the next 1000 years (-7.70 arcmin in Right Ascension and -2.43 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 47m 09s

Declination -33° 10’ 12”

Hour Angle 09h 12m 01s

Sidereal Time 22h 59m 10s

J2000

Right Ascension 13h 45m 41s

Declination -33° 02’ 38”

Galactic Coordinates

Galactic Longitude 315.86°

Galactic Latitude 28.46°

Finder Chart

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Finder chart for 1 Centauri.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.23

Class Sub-giant

Absolute magnitude 2.81

Spectral Type F3IV

Color Index (B-V) 0.38

Temperature 6989K

The red dot in the diagram below shows where 1 Centauri is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 1 Centauri. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

1 Centauri is distant 62.80 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 19.26

Distance (light year) 62.80

Radial Speed -22 km/s

Proper Motion RA -0.462 arcsec/y

Proper Motion Dec -0.146"/y

Alternative Designations

Flamsteed designation 1 Centauri

Henry Draper Catalogue HD119756

SAO Catalogue SAO204812

Hipparcos Catalogue HIP67153

Durchmusterung Catalogue CD-32 9603

Gliese Catalogue Gl 525.1

FK5 Catalogue 506

General Catalogue of Variable Stars Var?

Visibility from Your Location

Today's 1 Centauri rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 123.2° RISE 20:33

Max altitude: 5.3° TRANSIT 22:51

Azimuth: 236.8° SET 1:14

Set Location

Other stars in Centaurus