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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: 7:44  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Lepus » 


Altitude: -26.0°   Azimuth: 262.2°   Direction: West

HR1771 is a multiple bright giant star in the constellation of Lepus.

HR1771 visual magnitude is 5.06. Because of its reltive faintness, HR1771 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 HR1771:

Bright giant

HR1771 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -26.0°
Azimuth: 262.2°
Direction: West

Celestial coordinates and finder chart of HR1771

HR1771 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 HR1771 are provided in the following table:

05h 21m 46s
-24° 46’ 23”

The simplified sky map below shows the position of HR1771 in the sky:

Finder chart HR1771 star
Simplified finder chart for HR1771.

Visibility of HR1771 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 HR1771 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: 114.8°
Max altitude: 13.7°
Azimuth: 245.2°

Digitized Sky Survey image of HR1771

The image below is a photograph of HR1771 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 HR1771 is -0.024 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1771 star
DSS2 image of HR1771. The red arrow shows the motion of HR1771 during the next 10000 years (-4.00 arcmin in Right Ascension and -2.17 arcmin in declination);

Distance of HR1771 from the Sun and relative movement

HR1771 is distant 293.96 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

90.17 pc
293.96 ly
5 km/s
-0.024 arcsec/year
-0.013 arcsec/year

Spectral properties of HR1771

HR1771 belongs to spectral class G7 and has a luminosity class of II corresponding to a bright giant star.


The red dot in the diagram below shows where HR1771 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR1771. Attribution: Richard Powell / CC BY-SA

HR1771 star system properties

HR1771 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 HR1771 double sysyem:

3.1 arcsec

Alternative designations of HR1771