ο Scorpii (omicron Scorpii)

Below the horizon. Rise: 21:37 | Tran: 1:22 | Set: 5:03

Alt: -19.61° Az: 255.40° Direction: West-South-West

ο Scorpii is a variable bright giant star of spectral class A5 in the constellation of Scorpius.

ο Scorpii visual magnitude is 4.55. Because of its moderate brightness, ο 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.

Image of ο Scorpii (omicron Scorpii) star

DSS2 image of ο Scorpii. The red arrow shows the motion of ο Scorpii during the next 10000 years (-0.50 arcmin in Right Ascension and -3.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 16h 22m 10s

Declination -24° 13’ 42”

Hour Angle 06h 05m 50s

Sidereal Time 22h 28m 00s

J2000

Right Ascension 16h 20m 38s

Declination -24° 10’ 09”

Galactic Coordinates

Galactic Longitude 352.33°

Galactic Latitude 18.05°

Finder Chart

Loading map...

Finder chart for ο Scorpii (omicron Scorpii).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.55

Class Bright giant

Absolute magnitude -3.24

Spectral Type A5II

Color Index (B-V) 0.84

Temperature 5163K

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

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

Distance, Radial Speed, Proper Motion

ο Scorpii is distant 1,176.90 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 361.01

Distance (light year) 1,176.90

Radial Speed -8 km/s

Proper Motion RA -0.003 arcsec/y

Proper Motion Dec -0.023"/y

Alternative Designations

Bayer designation ο Scorpii
(omicron Scorpii)

Flamsteed designation 19 Scorpii

Henry Draper Catalogue HD147084

SAO Catalogue SAO184329

Hipparcos Catalogue HIP80079

Durchmusterung Catalogue CD-2312849

General Catalogue of Variable Stars 7632

Visibility from Your Location

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

Azimuth: 114.2° RISE 21:37

Max altitude: 14.3° TRANSIT 1:22

Azimuth: 245.8° SET 5:03

Set Location

Other stars in Scorpius