Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
wb_twilight Nautical TwilightWhat's Visible Now
All Constellations » Canis Major » 


Altitude: -39.3°   Azimuth: 265.6°   Direction: West

HR2823 is a giant star in the constellation of Canis Major.

HR2823 visual magnitude is 5.39. Because of its reltive faintness, HR2823 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 HR2823:


HR2823 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -39.3°
Azimuth: 265.6°
Direction: West

Celestial coordinates and finder chart of HR2823

HR2823 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 HR2823 are provided in the following table:

07h 23m 31s
-32° 12’ 07”
Canis Major

The simplified sky map below shows the position of HR2823 in the sky:

Finder chart HR2823 star
Simplified finder chart for HR2823.

Visibility of HR2823 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 HR2823 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: 122.2°
Max altitude: 6.3°
Azimuth: 237.8°
HR2823 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR2823

The image below is a photograph of HR2823 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 HR2823 is -0.009 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR2823 star
DSS2 image of HR2823. The red arrow shows the motion of HR2823 during the next 100000 years (-15.00 arcmin in Right Ascension and 6.67 arcmin in declination);

Distance of HR2823 from the Sun and relative movement

HR2823 is distant 1,156.03 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

354.61 pc
1,156.03 ly
21 km/s
-0.009 arcsec/year
0.004 arcsec/year

Spectral properties of HR2823

HR2823 belongs to spectral class B3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR2823 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR2823. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR2823