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
sunny DaytimeWhat's Visible Now
All Constellations » Orion » 


Altitude: 45.9°   Azimuth: 185.6°   Direction: South

HR1920 is a giant star in the constellation of Orion.

HR1920 visual magnitude is 5.88. Because of its reltive faintness, HR1920 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 HR1920:


HR1920 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 45.9°
Azimuth: 185.6°
Direction: South

Celestial coordinates and finder chart of HR1920

HR1920 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 HR1920 are provided in the following table:

05h 38m 01s
+07° 32’ 29”

The simplified sky map below shows the position of HR1920 in the sky:

Finder chart HR1920 star
Simplified finder chart for HR1920.

Visibility of HR1920 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 HR1920 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: 82.5°
Max altitude: 46.1°
Azimuth: 277.5°
HR1920 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1920

The image below is a photograph of HR1920 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 HR1920 is 0.007 arcsec per year in Right Ascension and -0.017 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1920 star
DSS2 image of HR1920. The red arrow shows the motion of HR1920 during the next 10000 years (1.17 arcmin in Right Ascension and -2.83 arcmin in declination);

Distance of HR1920 from the Sun and relative movement

HR1920 is distant 556.31 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

170.65 pc
556.31 ly
19 km/s
0.007 arcsec/year
-0.017 arcsec/year

Spectral properties of HR1920

HR1920 belongs to spectral class B8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR1920 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1920. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1920