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: 4:51  
clear_day Transit: 12:56  
SunsetSet: 21:00 south
sunny DaytimeWhat's Visible Now
All Constellations » Orion » 


HR1911 is a variable and double main-sequence star in the constellation of Orion.

HR1911 visual magnitude is 5.72. Because of its reltive faintness, HR1911 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 HR1911:

HR1911 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 31°.

Celestial coordinates and finder chart of HR1911

HR1911 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 HR1911 are provided in the following table:

05h 36m 35s
-06° 03’ 54”

The simplified sky map below shows the position of HR1911 in the sky:

Finder chart HR1911 star
Simplified finder chart for HR1911.

Visibility of HR1911 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 HR1911 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: 96.1°
Max altitude: 32.5°
Azimuth: 263.9°
HR1911 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1911

The image below is a photograph of HR1911 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 HR1911 is -0.005 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1911 star
DSS2 image of HR1911. The red arrow shows the motion of HR1911 during the next 10000 years (-0.83 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of HR1911 from the Sun and relative movement

HR1911 is distant 1,917.65 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

588.24 pc
1,917.65 ly
28 km/s
-0.005 arcsec/year
-0.012 arcsec/year

Spectral properties of HR1911

HR1911 belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR1911 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1911. Attribution: Richard Powell / CC BY-SA

HR1911 star system properties

HR1911 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR1911 double sysyem:

5.2 arcsec

Alternative designations of HR1911