Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
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SunsetSet: 20:59 south
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All Constellations » Columba » 

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:

5.71
Giant
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:

05h 23m 23s
-39° 40’ 42”
244.4°
-33.22°
Columba

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

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.

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);

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.

-0.47
M1III
3622K

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

SAO195807
SAO195807