HR4128

Below the horizon. Never rises today

Alt: -26.78° Az: 198.85° Direction: South-South-West

HR4128 is a double giant star of spectral class M2 in the constellation of Carina.

HR4128 visual magnitude is 6.43. Because of its faintness, HR4128 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 HR4128. The red arrow shows the motion of HR4128 during the next 10000 years (-0.50 arcmin in Right Ascension and 3.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 31m 33s

Declination -61° 29’ 12”

Hour Angle 02h 28m 39s

Sidereal Time 13h 00m 13s

J2000

Right Ascension 10h 30m 39s

Declination -61° 21’ 21”

Galactic Coordinates

Galactic Longitude 286.87°

Galactic Latitude -2.95°

Finder Chart

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Finder chart for HR4128.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.43

Class Giant

Absolute magnitude -0.55

Spectral Type M2III

Color Index (B-V) 1.76

Temperature 3440K

The red dot in the diagram below shows where HR4128 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4128. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4128 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR4128 double sysyem:

Main star magnitude 6.43

Secondary star magnitude 7.63

Magnitude difference 1.2

Separation 82.6 arcsec

Distance, Radial Speed, Proper Motion

HR4128 is distant 810.95 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

Distance (parsec) 248.76

Distance (light year) 810.95

Radial Speed -4 km/s

Proper Motion RA -0.003 arcsec/y

Proper Motion Dec 0.022"/y

Alternative Designations

Henry Draper Catalogue HD91270

SAO Catalogue SAO250992

Hipparcos Catalogue HIP51461

Durchmusterung Catalogue CP-60 1945

Visibility from Your Location

HR4128 is currently not visible from Greenwich, UK

Set Location

Other stars in Carina