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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 » Monoceros » 


Altitude: -25.3°   Azimuth: 75.8°   Direction: East-North-East

HR3189 is a hypergiant star in the constellation of Monoceros.

HR3189 visual magnitude is 6.32. Because of its reltive faintness, HR3189 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 HR3189:


HR3189 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -25.3°
Azimuth: 75.8°
Direction: East-North-East

Celestial coordinates and finder chart of HR3189

HR3189 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 HR3189 are provided in the following table:

08h 08m 56s
-11° 20’ 22”

The simplified sky map below shows the position of HR3189 in the sky:

Finder chart HR3189 star
Simplified finder chart for HR3189.

Visibility of HR3189 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 HR3189 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: 101.3°
Max altitude: 27.2°
Azimuth: 258.7°

Digitized Sky Survey image of HR3189

The image below is a photograph of HR3189 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 HR3189 is -0.004 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 HR3189 star
DSS2 image of HR3189. The red arrow shows the motion of HR3189 during the next 10000 years (-0.67 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of HR3189 from the Sun and relative movement

HR3189 is distant 729.31 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

223.71 pc
729.31 ly
20 km/s
-0.004 arcsec/year
-0.012 arcsec/year

Spectral properties of HR3189

HR3189 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.


The red dot in the diagram below shows where HR3189 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR3189. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3189