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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: 6:44  
clear_day Transit: 12:10  
SunsetSet: 17:38
sleep NighttimeWhat's Visible Now?
All Constellations » Columba » 


Altitude: 8.0°   Azimuth: 202.9°   Direction: South-South-West

HR1758 is a hypergiant star in the constellation of Columba.

HR1758 visual magnitude is 5.99. Because of its reltive faintness, HR1758 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR1758 is 0 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1758 star
DSS2 image of HR1758. The red arrow shows the motion of HR1758 during the next 10000 years (0.00 arcmin in Right Ascension and -1.67 arcmin in declination);

Key facts about HR1758


HR1758 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 8.0°
Azimuth: 202.9°
Direction: South-South-West

Celestial coordinates and finder chart of HR1758

HR1758 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 HR1758 are provided in the following table:

05h 19m 23s
-27° 22’ 08”

The simplified sky map below shows the position of HR1758 in the sky:

Finder chart HR1758 star
Simplified finder chart for HR1758.

Visibility of HR1758 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 HR1758 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: 117.4°
Max altitude: 11.2°
Azimuth: 242.6°

Distance of HR1758 from the Sun and relative movement

HR1758 is distant 445.96 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

136.80 pc
445.96 ly
18 km/s
-0.01 arcsec/year

Spectral properties of HR1758

HR1758 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR1758 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR1758. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1758