HR4577

Below the horizon. Never rises today

Alt: -18.39° Az: 226.03° Direction: South-West

HR4577 is a double giant star of spectral class K1 in the constellation of Centaurus.

HR4577 visual magnitude is 6.79. Because of its faintness, HR4577 is not visible to the naked eye.

DSS2 image of HR4577. The red arrow shows the motion of HR4577 during the next 10000 years (-9.50 arcmin in Right Ascension and 3.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 11h 59m 36s

Declination -41° 05’ 06”

Hour Angle 04h 19m 51s

Sideral Time 16h 19m 27s

J2000

Right Ascension 11h 58m 20s

Declination -40° 56’ 49”

Galactic Coordinates

Galactic Longitude 292.24°

Galactic Latitude 20.82°

Finder Chart

Simplified finder chart for HR4577.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.79

Class Giant

Absolute magnitude 2.11

Spectral Type K1III

Color Index (B-V) 0.97

Temperature 4816K

The red dot in the diagram below shows where HR4577 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4577. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4577 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR4577 double sysyem:

Main star magnitude 6.79

Secondary star magnitude 9.39

Magnitude difference 2.6

Separation 3.1 arcsec

Distance, Radial Speed, Proper Motion

HR4577 is distant 281.52 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

Distance (parsec) 86.36

Distance (light year) 281.52

Radial Speed 7 km/s

Proper Motion RA -0.057 arcsec/y

Proper Motion Dec 0.021"/y

Alternative Designations

Henry Draper Catalogue HD103974

SAO Catalogue SAO223139

Hipparcos Catalogue HIP58388

Durchmusterung Catalogue CD-40 7041

Visibility from Your Location

HR4577 is currently not visible from Greenwich, UK

Set Location

Other stars in Centaurus