HR23

Below the horizon. Never rises today

Alt: -27.75° Az: 143.54° Direction: South-East

HR23 is a double sub-giant star of spectral class G4 in the constellation of Phoenix.

HR23 visual magnitude is 6.33. Because of its faintness, HR23 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 HR23. The red arrow shows the motion of HR23 during the next 10000 years (8.50 arcmin in Right Ascension and 2.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 00h 10m 18s

Declination -53° 51’ 36”

Hour Angle 19h 47m 35s

Sidereal Time 19h 57m 54s

J2000

Right Ascension 00h 09m 02s

Declination -54° 00’ 06”

Galactic Coordinates

Galactic Longitude 316.25°

Galactic Latitude -62.02°

Finder Chart

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Finder chart for HR23.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.33

Class Sub-giant

Absolute magnitude 0.56

Spectral Type G4IV

Color Index (B-V) 0.74

Temperature 5468K

The red dot in the diagram below shows where HR23 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR23. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR23 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR23 double sysyem:

Main star magnitude 6.33

Secondary star magnitude 7.63

Magnitude difference 1.3

Separation 0.2 arcsec

Distance, Radial Speed, Proper Motion

HR23 is distant 465.71 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

Distance (parsec) 142.86

Distance (light year) 465.71

Radial Speed 1 km/s

Proper Motion RA 0.051 arcsec/y

Proper Motion Dec 0.016"/y

Alternative Designations

Henry Draper Catalogue HD469

SAO Catalogue SAO231943

Hipparcos Catalogue HIP730

Durchmusterung Catalogue CP-54 19

Visibility from Your Location

HR23 is currently not visible from Greenwich, UK

Set Location

Other stars in Phoenix