2 Scorpii

Below the horizon. Rise: 19:20 | Tran: 23:14 | Set: 3:13

Alt: -68.06° Az: 0.25° Direction: North

2 Scorpii is a double main-sequence star of spectral class B2 in the constellation of Scorpius.

2 Scorpii visual magnitude is 4.59. Because of its moderate brightness, 2 Scorpii is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of 2 Scorpii. The red arrow shows the motion of 2 Scorpii during the next 10000 years (-2.67 arcmin in Right Ascension and -4.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 15h 55m 08s

Declination -25° 24’ 04”

Hour Angle 12h 00m 25s

Sidereal Time 03h 55m 33s

J2000

Right Ascension 15h 53m 36s

Declination -25° 19’ 37”

Galactic Coordinates

Galactic Longitude 346.88°

Galactic Latitude 21.61°

Finder Chart

Loading map...

Finder chart for 2 Scorpii.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.59

Class Main-sequence

Absolute magnitude -1.03

Spectral Type B2V

Color Index (B-V) -0.07

Temperature 11092K

The red dot in the diagram below shows where 2 Scorpii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 2 Scorpii. Attribution: Richard Powell / CC BY-SA

Star System Properties

2 Scorpii is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the 2 Scorpii double sysyem:

Main star magnitude 4.59

Secondary star magnitude 7.09

Magnitude difference 2.5

Separation 2.3 arcsec

Distance, Radial Speed, Proper Motion

2 Scorpii is distant 433.51 light years from the Sun and it is moving towards the Sun at the speed of 10 kilometers per second.

Distance (parsec) 132.98

Distance (light year) 433.51

Radial Speed -10 km/s

Proper Motion RA -0.016 arcsec/y

Proper Motion Dec -0.025"/y

Alternative Designations

Flamsteed designation 2 Scorpii

Henry Draper Catalogue HD142114

SAO Catalogue SAO183896

Hipparcos Catalogue HIP77840

Durchmusterung Catalogue CD-2412352

Aitken Double Star Catalogue ADS9823

Visibility from Your Location

Today's 2 Scorpii rise, transit and set times from Bouzillé, Francia are the following (all times relative to the local timezone Europe/Paris):

Azimuth: 115.4° RISE 19:20

Max altitude: 17.3° TRANSIT 23:14

Azimuth: 244.6° SET 3:13

Name:	Bouzillé, Francia
Latitude:	47° 20' 15.0" N
Longitude:	1° 6' 41.1" W
Timezone:	Europe/Paris

Set Location

Other stars in Scorpius