HR1831

Below the horizon. Rise: 3:42 | Tran: 11:45 | Set: 19:48

Alt: -9.45° Az: 33.75° Direction: North-North-East

HR1831 is a hypergiant star of spectral class K0 in the constellation of Taurus.

HR1831 visual magnitude is 6.29. Because of its faintness, HR1831 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 HR1831. The red arrow shows the motion of HR1831 during the next 10000 years (7.17 arcmin in Right Ascension and -2.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 32m 15s

Declination +22° 28’ 48”

Hour Angle 14h 25m 29s

Sidereal Time 19h 57m 45s

J2000

Right Ascension 05h 30m 43s

Declination +22° 27’ 44”

Galactic Coordinates

Galactic Longitude 183.7°

Galactic Latitude -6.29°

Finder Chart

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Finder chart for HR1831.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.29

Class Hypergiant

Absolute magnitude 0.87

Spectral Type K0

Color Index (B-V) 1.18

Temperature 4348K

The red dot in the diagram below shows where HR1831 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1831. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR1831 is distant 394.67 light years from the Sun and it is moving far from the Sun at the speed of 2 kilometers per second.

Distance (parsec) 121.07

Distance (light year) 394.67

Radial Speed 2 km/s

Proper Motion RA 0.043 arcsec/y

Proper Motion Dec -0.016"/y

Alternative Designations

Henry Draper Catalogue HD36160

SAO Catalogue SAO77220

Hipparcos Catalogue HIP25806

Durchmusterung Catalogue BD+22 925

Visibility from Your Location

Today's HR1831 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 67.5° RISE 3:42

Max altitude: 61.0° TRANSIT 11:45

Azimuth: 292.5° SET 19:48

Set Location

Other stars in Taurus