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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Triangulum » 

10 Trianguli

Altitude: 24.4°   Azimuth: 74.0°   Direction: East-North-East

10 Trianguli is a double main-sequence star in the constellation of Triangulum.

10 Trianguli visual magnitude is 5.03. Because of its reltive faintness, 10 Trianguli should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of 10 Trianguli is 0.011 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 10 Trianguli star
DSS2 image of 10 Trianguli. The red arrow shows the motion of 10 Trianguli during the next 10000 years (1.83 arcmin in Right Ascension and -1.00 arcmin in declination);

Key facts about 10 Trianguli


10 Trianguli is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 24.4°
Azimuth: 74.0°
Direction: East-North-East

Celestial coordinates and finder chart of 10 Trianguli

10 Trianguli is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 10 Trianguli are provided in the following table:

02h 18m 56s
+28° 38’ 32”

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

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

Visibility of 10 Trianguli 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 Trianguli 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: 61.4°
Max altitude: 67.2°
Azimuth: 298.6°

Distance of 10 Trianguli from the Sun and relative movement

10 Trianguli is distant 350.16 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

107.41 pc
350.16 ly
3 km/s
0.011 arcsec/year
-0.006 arcsec/year

Spectral properties of 10 Trianguli

10 Trianguli belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


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

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

10 Trianguli star system properties

10 Trianguli is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the 10 Trianguli double sysyem:

57.1 arcsec

Alternative designations of 10 Trianguli

10 Trianguli