HR1681

Above the horizon. Rise: 8:37 | Tran: 14:33 | Set: 20:28

Alt: 35.16° Az: 205.40° Direction: South-South-West

HR1681 is a hypergiant star of spectral class K0 in the constellation of Orion.

HR1681 visual magnitude is 6.1. Because of its faintness, HR1681 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 HR1681. The red arrow shows the motion of HR1681 during the next 10000 years (0.17 arcmin in Right Ascension and -8.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 11m 20s

Declination -00° 32’ 06”

Hour Angle 01h 22m 06s

Sidereal Time 06h 33m 26s

J2000

Right Ascension 05h 10m 03s

Declination -00° 33’ 55”

Galactic Coordinates

Galactic Longitude 201.28°

Galactic Latitude -22.67°

Finder Chart

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Finder chart for HR1681.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.1

Class Hypergiant

Absolute magnitude 1.18

Spectral Type K0III

Color Index (B-V) 1.1

Temperature 4515K

The red dot in the diagram below shows where HR1681 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1681. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR1681 is distant 314.37 light years from the Sun and it is moving far from the Sun at the speed of 26 kilometers per second.

Distance (parsec) 96.43

Distance (light year) 314.37

Radial Speed 26 km/s

Proper Motion RA 0.001 arcsec/y

Proper Motion Dec -0.053"/y

Alternative Designations

Henry Draper Catalogue HD33419

SAO Catalogue SAO131834

Hipparcos Catalogue HIP24041

Durchmusterung Catalogue BD-00 867

Visibility from Your Location

Today's HR1681 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 90.5° RISE 8:37

Max altitude: 38.0° TRANSIT 14:33

Azimuth: 269.5° SET 20:28

Set Location

Other stars in Orion