HR4985

Below the horizon. Never rises today

Alt: -69.60° Az: 258.85° Direction: West

HR4985 is a double main-sequence star of spectral class B9 in the constellation of Centaurus.

HR4985 visual magnitude is 5.89. Because of its faintness, HR4985 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 HR4985. The red arrow shows the motion of HR4985 during the next 10000 years (-3.17 arcmin in Right Ascension and -4.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 13h 14m 54s

Declination -50° 50’ 02”

Hour Angle 09h 48m 51s

Sidereal Time 23h 03m 46s

J2000

Right Ascension 13h 13m 23s

Declination -50° 42’ 00”

Galactic Coordinates

Galactic Longitude 306.48°

Galactic Latitude 12.02°

Finder Chart

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Finder chart for HR4985.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.89

Class Main-sequence

Absolute magnitude 0.87

Spectral Type B9V

Color Index (B-V) -0.02

Temperature 10382K

The red dot in the diagram below shows where HR4985 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4985. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4985 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 HR4985 double sysyem:

Main star magnitude 5.89

Secondary star magnitude 6.19

Magnitude difference 0.3

Separation 0.3 arcsec

Distance, Radial Speed, Proper Motion

HR4985 is distant 328.63 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

Distance (parsec) 100.81

Distance (light year) 328.63

Radial Speed -1 km/s

Proper Motion RA -0.019 arcsec/y

Proper Motion Dec -0.027"/y

Alternative Designations

Henry Draper Catalogue HD114772

SAO Catalogue SAO240655

Hipparcos Catalogue HIP64515

Durchmusterung Catalogue CD-50 7589

Visibility from Your Location

HR4985 is currently not visible from Greenwich, UK

Set Location

Other stars in Centaurus