HR1793

HR1793 is a variable giant star in the constellation of Columba.

HR1793 visual magnitude is 5.71. Because of its reltive faintness, HR1793 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 HR1793:

Color of HR1793 ⬤

Magnitude of HR1793 5.71

Class Giant

VISIBILITY RIGHT NOW HR1793 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR1793

HR1793 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1793 are provided in the following table:

Right Ascension J2000 05h 23m 23s

Declination J2000 -39° 40’ 42”

Galactic Longitude 244.4°

Galactic Latitude -33.22°

Constellation Columba

The simplified sky map below shows the position of HR1793 in the sky:

Simplified finder chart for HR1793.

Visibility of HR1793 from your location

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

HR1793 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR1793

The image below is a photograph of HR1793 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 HR1793 is 0.028 arcsec per year in Right Ascension and 0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1793. The red arrow shows the motion of HR1793 during the next 10000 years (4.67 arcmin in Right Ascension and 0.50 arcmin in declination);

Distance of HR1793 from the Sun and relative movement

HR1793 is distant 561.10 light years from the Sun and it is moving far from the Sun at the speed of 61 kilometers per second.

Distance (parsec) 172.12 pc

Distance (light year) 561.10 ly

Heliocentric radial velocity 61 km/s

Proper Motion RA 0.028 arcsec/year

Proper Motion Dec 0.003 arcsec/year

Spectral properties of HR1793

HR1793 belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.47

Spectral Type M1III

Color Index (B-V) 1.62

Temperature of HR1793 3622K

The red dot in the diagram below shows where HR1793 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1793. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1793

Henry Draper Catalogue HD35515

SAO Catalogue SAO195807

Hipparcos Catalogue HIP25194

Durchmusterung Catalogue CD-39 1940

FK5 Catalogue 2405

General Catalogue of Variable Stars SW Col

In Evidence

Other stars in Columba