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: -10.3°   Azimuth: 77.5°   Direction: East-North-East

HR1764 is a multiple main-sequence star in the constellation of Orion.

HR1764 visual magnitude is 5.68. Because of its reltive faintness, HR1764 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 HR1764:


HR1764 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -10.3°
Azimuth: 77.5°
Direction: East-North-East

Celestial coordinates and finder chart of HR1764

HR1764 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 HR1764 are provided in the following table:

05h 21m 31s
-00° 24’ 59”

The simplified sky map below shows the position of HR1764 in the sky:

Finder chart HR1764 star
Simplified finder chart for HR1764.

Visibility of HR1764 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 HR1764 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: 90.4°
Max altitude: 38.1°
Azimuth: 269.6°
HR1764 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1764

The image below is a photograph of HR1764 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 HR1764 is -0.003 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR1764 star
DSS2 image of HR1764. The red arrow shows the motion of HR1764 during the next 100000 years (-5.00 arcmin in Right Ascension and 3.33 arcmin in declination);

Distance of HR1764 from the Sun and relative movement

HR1764 is distant 1,075.91 light years from the Sun and it is moving far from the Sun at the speed of 7 kilometers per second.

330.03 pc
1,075.91 ly
7 km/s
-0.003 arcsec/year
0.002 arcsec/year

Spectral properties of HR1764

HR1764 belongs to spectral class B3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR1764 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1764. Attribution: Richard Powell / CC BY-SA

HR1764 star system properties

HR1764 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 HR1764 double sysyem:

37.6 arcsec

Alternative designations of HR1764