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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 7:19 
Transit: 12:14 
Sunset: 17:09
sunny   (Daytime)  
What's Visible Now • Tonight Timeline
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All Constellations » Scorpius » 

4 Scorpii

Below the horizon.  Rise: 3:01 | Tran: 6:26 | Set: 9:51
Alt: -55.27°   Az: 304.18°   Direction: North-West

4 Scorpii is a main-sequence star of spectral class A3 in the constellation of Scorpius.

4 Scorpii visual magnitude is 5.62. Because of its faintness, 4 Scorpii is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 4 Scorpii star
DSS2 image of 4 Scorpii. The red arrow shows the motion of 4 Scorpii during the next 10000 years (-7.50 arcmin in Right Ascension and -3.50 arcmin in declination);

Celestial Coordinates

Apparent

15h 57m 01s
-26° 20’ 15”
09h 53m 04s
01h 50m 06s

J2000

15h 55m 30s
-26° 15’ 56”

Galactic Coordinates

346.52°
20.64°

Finder Chart

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Finder chart for 4 Scorpii.

Magnitude, Color, Spectral Class

5.62
Main-sequence

0.01
A3V
8571K

The red dot in the diagram below shows where 4 Scorpii is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of 4 Scorpii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

4 Scorpii is distant 431.79 light years from the Sun and it is moving towards the Sun at the speed of 29 kilometers per second.

132.45
431.79
-29 km/s
-0.045 arcsec/y
-0.021"/y

Alternative Designations

SAO183931
SAO183931

Visibility from Your Location

Today's 4 Scorpii rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 116.3°
Max altitude: 12.2°
Azimuth: 243.7°