HR1724

Above the horizon. Rise: 10:10 | Tran: 16:18 | Set: 22:26

Alt: 31.30° Az: 225.63° Direction: South-West

HR1724 is a hypergiant star of spectral class A0 in the constellation of Orion.

HR1724 visual magnitude is 6.42. Because of its faintness, HR1724 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 HR1724. The red arrow shows the motion of HR1724 during the next 10000 years (-1.83 arcmin in Right Ascension and -1.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 18m 00s

Declination +01° 58’ 23”

Hour Angle 02h 30m 41s

Sidereal Time 07h 48m 41s

J2000

Right Ascension 05h 16m 41s

Declination +01° 56’ 49”

Galactic Coordinates

Galactic Longitude 199.81°

Galactic Latitude -19.99°

Finder Chart

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Finder chart for HR1724.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.42

Class Hypergiant

Absolute magnitude 0.07

Spectral Type A0V

Color Index (B-V) -0.02

Temperature 10382K

The red dot in the diagram below shows where HR1724 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1724. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR1724 is distant 608.21 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 186.57

Distance (light year) 608.21

Radial Speed -8 km/s

Proper Motion RA -0.011 arcsec/y

Proper Motion Dec -0.009"/y

Alternative Designations

Henry Draper Catalogue HD34317

SAO Catalogue SAO112588

Hipparcos Catalogue HIP24607

Durchmusterung Catalogue BD+01 957

Visibility from Your Location

Today's HR1724 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 88.0° RISE 10:10

Max altitude: 40.5° TRANSIT 16:18

Azimuth: 272.0° SET 22:26

Set Location

Other stars in Orion