HR1724

HR1724 is a hypergiant star in the constellation of Orion.

HR1724 visual magnitude is 6.42. Because of its reltive faintness, HR1724 should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about HR1724:

Color of HR1724 ⬤

Magnitude of HR1724 6.42

Class Hypergiant

VISIBILITY RIGHT NOW HR1724 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR1724

HR1724 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1724 are provided in the following table:

Right Ascension J2000 05h 16m 41s

Declination J2000 +01° 56’ 49”

Galactic Longitude 199.81°

Galactic Latitude -19.99°

Constellation Orion

The simplified sky map below shows the position of HR1724 in the sky:

Simplified finder chart for HR1724.

Visibility of HR1724 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

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

Azimuth: 88.1° RISE 7:45

Max altitude: 40.5° TRANSIT 13:53

Azimuth: 271.9° SET 20:01

RIGHT NOW HR1724 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1724

The image below is a photograph of HR1724 from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of HR1724 is -0.011 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

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);

Distance of HR1724 from the Sun and relative movement

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 pc

Distance (light year) 608.21 ly

Heliocentric radial velocity -8 km/s

Proper Motion RA -0.011 arcsec/year

Proper Motion Dec -0.009 arcsec/year

Spectral properties of HR1724

HR1724 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude 0.07

Spectral Type A0V

Color Index (B-V) -0.02

Temperature of HR1724 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

Alternative designations of HR1724

Henry Draper Catalogue HD34317

SAO Catalogue SAO112588

Hipparcos Catalogue HIP24607

Durchmusterung Catalogue BD+01 957

In Evidence

Other stars in Orion