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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
SunriseRise: 6:59  
clear_day Transit: 12:12  
SunsetSet: 17:25
sleep NighttimeWhat's Visible Now?
All Constellations » Monoceros » 

10 Monocerotis

Altitude: -15.2°   Azimuth: 281.8°   Direction: West-North-West

10 Monocerotis is a multiple main-sequence star in the constellation of Monoceros.

10 Monocerotis visual magnitude is 5.06. Because of its reltive faintness, 10 Monocerotis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of 10 Monocerotis is -0.005 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of 10 Monocerotis star
DSS2 image of 10 Monocerotis. The red arrow shows the motion of 10 Monocerotis during the next 100000 years (-8.33 arcmin in Right Ascension and -1.67 arcmin in declination);

Key facts about 10 Monocerotis


10 Monocerotis is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -15.2°
Azimuth: 281.8°
Direction: West-North-West

Celestial coordinates and finder chart of 10 Monocerotis

10 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 10 Monocerotis are provided in the following table:

06h 27m 57s
-04° 45’ 43”

The simplified sky map below shows the position of 10 Monocerotis in the sky:

Finder chart 10 Monocerotis star
Simplified finder chart for 10 Monocerotis.

Visibility of 10 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 10 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: 94.8°
Max altitude: 33.8°
Azimuth: 265.2°

Distance of 10 Monocerotis from the Sun and relative movement

10 Monocerotis is distant 1,352.70 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

414.94 pc
1,352.70 ly
25 km/s
-0.005 arcsec/year
-0.001 arcsec/year

Spectral properties of 10 Monocerotis

10 Monocerotis belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 10 Monocerotis is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 10 Monocerotis. Attribution: Richard Powell / CC BY-SA

10 Monocerotis star system properties

10 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 10 Monocerotis double sysyem:

77.2 arcsec

Alternative designations of 10 Monocerotis

10 Monocerotis