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: 4:51  
clear_day Transit: 12:56  
SunsetSet: 21:00 south
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All Constellations » Monoceros » 

13 Monocerotis

13 Monocerotis is a hypergiant star in the constellation of Monoceros.

13 Monocerotis visual magnitude is 4.5. Because of its moderate brightness, 13 Monocerotis should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 13 Monocerotis:

13 Monocerotis is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 16°.

Celestial coordinates and finder chart of 13 Monocerotis

13 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. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 13 Monocerotis are provided in the following table:

06h 32m 54s
+07° 19’ 59”

The simplified sky map below shows the position of 13 Monocerotis in the sky:

Finder chart 13 Monocerotis star
Simplified finder chart for 13 Monocerotis.

Visibility of 13 Monocerotis 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 13 Monocerotis 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: 82.7°
Max altitude: 45.9°
Azimuth: 277.3°
13 Monocerotis is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 13 Monocerotis

The image below is a photograph of 13 Monocerotis 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 13 Monocerotis is -0.001 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of 13 Monocerotis star
DSS2 image of 13 Monocerotis. The red arrow shows the motion of 13 Monocerotis during the next 100000 years (-1.67 arcmin in Right Ascension and -10.00 arcmin in declination);

Distance of 13 Monocerotis from the Sun and relative movement

13 Monocerotis is distant 1,509.26 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

462.96 pc
1,509.26 ly
12 km/s
-0.001 arcsec/year
-0.006 arcsec/year

Spectral properties of 13 Monocerotis

13 Monocerotis belongs to spectral class A0 and has a luminosity class of I corresponding to a hypergiant star.


The red dot in the diagram below shows where 13 Monocerotis is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 13 Monocerotis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 13 Monocerotis

13 Monocerotis