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: 4:50  
clear_day Transit: 12:56  
SunsetSet: 21:02 south
sunny DaytimeWhat's Visible Now
All Constellations » Scorpius » 

13 Scorpii

13 Scorpii is a main-sequence star in the constellation of Scorpius.

13 Scorpii visual magnitude is 4.59. Because of its moderate brightness, 13 Scorpii 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 Scorpii:

13 Scorpii is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of 13 Scorpii

13 Scorpii is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 13 Scorpii are provided in the following table:

16h 12m 18s
-27° 55’ 35”

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

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

Visibility of 13 Scorpii 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 Scorpii 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: 117.9°
Max altitude: 10.6°
Azimuth: 242.1°
13 Scorpii is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 13 Scorpii

The image below is a photograph of 13 Scorpii 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 Scorpii is -0.013 arcsec per year in Right Ascension and -0.025 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 13 Scorpii star
DSS2 image of 13 Scorpii. The red arrow shows the motion of 13 Scorpii during the next 10000 years (-2.17 arcmin in Right Ascension and -4.17 arcmin in declination);

Distance of 13 Scorpii from the Sun and relative movement

13 Scorpii is distant 467.72 light years from the Sun and it is moving far from the Sun at the speed of 10 kilometers per second.

143.47 pc
467.72 ly
10 km/s
-0.013 arcsec/year
-0.025 arcsec/year

Spectral properties of 13 Scorpii

13 Scorpii 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 13 Scorpii is situated in the Hertzsprung–Russell diagram.

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

Alternative designations of 13 Scorpii