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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: 7:51  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Lynx » 


Altitude: 20.4°   Azimuth: 50.7°   Direction: North-East

HR3811 is a multiple main-sequence star in the constellation of Lynx.

HR3811 visual magnitude is 6.76. Because of its reltive faintness, HR3811 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 HR3811:


HR3811 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 20.4°
Azimuth: 50.7°
Direction: North-East

Celestial coordinates and finder chart of HR3811

HR3811 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR3811 are provided in the following table:

09h 35m 22s
+39° 57’ 47”

The simplified sky map below shows the position of HR3811 in the sky:

Finder chart HR3811 star
Simplified finder chart for HR3811.

Visibility of HR3811 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR3811 is circumpolar and transits at 04:24 UTC (altitude: 78.5°)

Digitized Sky Survey image of HR3811

The image below is a photograph of HR3811 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 HR3811 is -0.016 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 HR3811 star
DSS2 image of HR3811. The red arrow shows the motion of HR3811 during the next 10000 years (-2.67 arcmin in Right Ascension and 2.00 arcmin in declination);

Distance of HR3811 from the Sun and relative movement

HR3811 is distant 276.27 light years from the Sun and it is moving towards the Sun at the speed of 35 kilometers per second.

84.75 pc
276.27 ly
-35 km/s
-0.016 arcsec/year
0.012 arcsec/year

Spectral properties of HR3811

HR3811 belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR3811 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3811. Attribution: Richard Powell / CC BY-SA

HR3811 star system properties

HR3811 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR3811 double sysyem:

24.9 arcsec

Alternative designations of HR3811