We use cookies to deliver essential features and to measure their performance. Learn more.
We're free & ads-free thanks to your support
public LocationGreenwich, UK
Sunrise: 5:01 
Transit: 13:04 
Sunset: 21:06
sunny   (Daytime)   What's Visible Now?
All Constellations » Monoceros » 

ζ Monocerotis (zeta Monocerotis)

Above the horizon.  Rise: 7:47 | Tran: 13:30 | Set: 19:13
Alt: 3.14°   Az: 98.89°   Direction: East

ζ Monocerotis is a multiple supergiant star of spectral class G2 in the constellation of Monoceros.

ζ Monocerotis visual magnitude is 4.34. Because of its moderate brightness, ζ Monocerotis is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

ζ Monocerotis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year.

Image of ζ Monocerotis (zeta Monocerotis) star
DSS2 image of ζ Monocerotis. The red arrow shows the motion of ζ Monocerotis during the next 10000 years (-2.83 arcmin in Right Ascension and -0.83 arcmin in declination);

Celestial Coordinates


08h 09m 49s
-03° 03’ 24”
18h 35m 41s
02h 45m 31s


08h 08m 35s
-02° 59’ 02”

Galactic Coordinates


Finder Chart

Finder chart ζ Monocerotis (zeta Monocerotis) star
Simplified finder chart for ζ Monocerotis (zeta Monocerotis).

Magnitude, Color, Spectral Class



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

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

Star System Properties

ζ Monocerotis 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 ζ Monocerotis double sysyem:

66 arcsec

Distance, Radial Speed, Proper Motion

ζ Monocerotis is distant 1,852.27 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

568.18 pc
1,852.27 ly
30 km/s
-0.017 arcsec/y
-0.005 "/y

Alternative Designations

ζ Monocerotis
(zeta Monocerotis)
29 Monocerotis

Visibility from Your Location

Today's ζ Monocerotis (zeta Monocerotis) rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 93.1°
Max altitude: 35.5°
Azimuth: 266.9°