δ Centauri (delta Centauri)

Below the horizon. Never rises today

Alt: -87.27° Az: 78.59° Direction: East-North-East

δ Centauri is a variable and multiple sub-giant star of spectral class B2 in the constellation of Centaurus.

δ Centauri visual magnitude is 2.6. Because of its brightness, δ Centauri is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of δ Centauri (delta Centauri) star

DSS2 image of δ Centauri. The red arrow shows the motion of δ Centauri during the next 10000 years (-5.67 arcmin in Right Ascension and -1.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 12h 09m 41s

Declination -50° 51’ 49”

Hour Angle 12h 16m 56s

Sidereal Time 00h 26m 37s

J2000

Right Ascension 12h 08m 21s

Declination -50° 43’ 20”

Galactic Coordinates

Galactic Longitude 296°

Galactic Latitude 11.57°

Finder Chart

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Finder chart for δ Centauri (delta Centauri).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 2.6

Class Sub-giant

Absolute magnitude -2.82

Spectral Type B2IV

Color Index (B-V) -0.12

Temperature 11920K

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

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

Star System Properties

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

Main star magnitude 2.6

Secondary star magnitude 4.5

Magnitude difference 1.9

Separation 268.6 arcsec

Distance, Radial Speed, Proper Motion

δ Centauri is distant 395.15 light years from the Sun and it is moving far from the Sun at the speed of 11 kilometers per second.

Distance (parsec) 121.21

Distance (light year) 395.15

Radial Speed 11 km/s

Proper Motion RA -0.034 arcsec/y

Proper Motion Dec -0.008"/y

Alternative Designations

Bayer designation δ Centauri
(delta Centauri)

Henry Draper Catalogue HD105435

SAO Catalogue SAO239689

Hipparcos Catalogue HIP59196

Durchmusterung Catalogue CD-50 6697

FK5 Catalogue 452

General Catalogue of Variable Stars Del Cen

Visibility from Your Location

δ Centauri (delta Centauri) is currently not visible from Greenwich, UK

In Evidence

Other stars in Centaurus

δ Centauri (delta Centauri)

Celestial Coordinates

Apparent

J2000

Galactic Coordinates

Finder Chart

Magnitude, Color, Spectral Class

Star System Properties

Distance, Radial Speed, Proper Motion

Alternative Designations

Visibility from Your Location

Set Location

In Evidence

Other stars in Centaurus

δ Centauri (delta Centauri)

Celestial Coordinates

Apparent

J2000

Galactic Coordinates

Finder Chart

Magnitude, Color, Spectral Class

Star System Properties

Distance, Radial Speed, Proper Motion

Alternative Designations

Visibility from Your Location