HR4003

Below the horizon. Rise: 16:41 | Tran: 19:46 | Set: 22:50

Alt: -43.64° Az: 277.55° Direction: West

HR4003 is a double main-sequence star of spectral class A1 in the constellation of Antlia.

HR4003 visual magnitude is 6.28. Because of its faintness, HR4003 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 HR4003. The red arrow shows the motion of HR4003 during the next 10000 years (-4.33 arcmin in Right Ascension and -2.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 10h 13m 12s

Declination -28° 43’ 56”

Hour Angle 08h 20m 24s

Sidereal Time 18h 33m 37s

J2000

Right Ascension 10h 12m 02s

Declination -28° 36’ 23”

Galactic Coordinates

Galactic Longitude 265.45°

Galactic Latitude 22.43°

Finder Chart

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Finder chart for HR4003.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.28

Class Main-sequence

Absolute magnitude 0.31

Spectral Type A1V

Color Index (B-V) 0.01

Temperature 10002K

The red dot in the diagram below shows where HR4003 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR4003. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR4003 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 HR4003 double sysyem:

Main star magnitude 6.28

Secondary star magnitude 6.38

Magnitude difference 0.1

Separation 0.1 arcsec

Distance, Radial Speed, Proper Motion

HR4003 is distant 509.38 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

Distance (parsec) 156.25

Distance (light year) 509.38

Radial Speed 18 km/s

Proper Motion RA -0.026 arcsec/y

Proper Motion Dec -0.014"/y

Alternative Designations

Henry Draper Catalogue HD88522

SAO Catalogue SAO178526

Hipparcos Catalogue HIP49967

Durchmusterung Catalogue CD-27 7266

Aitken Double Star Catalogue ADS7681

Visibility from Your Location

Today's HR4003 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 118.7° RISE 16:41

Max altitude: 9.8° TRANSIT 19:46

Azimuth: 241.3° SET 22:50

Set Location

Other stars in Antlia