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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
north SunriseRise: 7:52  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Orion » 


Altitude: 19.8°   Azimuth: 123.4°   Direction: East-South-East

HR1826 is a double hypergiant star in the constellation of Orion.

HR1826 visual magnitude is 6.39. Because of its reltive faintness, HR1826 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 HR1826:


HR1826 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 19.8°
Azimuth: 123.4°
Direction: East-South-East

Celestial coordinates and finder chart of HR1826

HR1826 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 HR1826 are provided in the following table:

05h 28m 56s
-03° 18’ 27”

The simplified sky map below shows the position of HR1826 in the sky:

Finder chart HR1826 star
Simplified finder chart for HR1826.

Visibility of HR1826 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 HR1826 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: 93.3°
Max altitude: 35.2°
Azimuth: 266.7°

Digitized Sky Survey image of HR1826

The image below is a photograph of HR1826 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 HR1826 is -0.035 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1826 star
DSS2 image of HR1826. The red arrow shows the motion of HR1826 during the next 10000 years (-5.83 arcmin in Right Ascension and -2.50 arcmin in declination);

Distance of HR1826 from the Sun and relative movement

HR1826 is distant 761.68 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

233.64 pc
761.68 ly
5 km/s
-0.035 arcsec/year
-0.015 arcsec/year

Spectral properties of HR1826

HR1826 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 HR1826 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1826. Attribution: Richard Powell / CC BY-SA

HR1826 star system properties

HR1826 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR1826 double sysyem:

0.8 arcsec

Alternative designations of HR1826