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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Columba » 


Altitude: -56.4°   Azimuth: 272.2°   Direction: West

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 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.

Image of HR1793 star
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);

Key facts about HR1793


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

Altitude: -56.4°
Azimuth: 272.2°
Direction: West

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:

05h 23m 23s
-39° 40’ 42”

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

Finder chart HR1793 star
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

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.

172.12 pc
561.10 ly
61 km/s
0.028 arcsec/year
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.


The red dot in the diagram below shows where HR1793 is situated in the HertzsprungÔÇôRussell diagram.

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

Alternative designations of HR1793