ζ1 Scorpii (zeta1 Scorpii)

Below the horizon. Never rises today

Alt: -6.83° Az: 199.93° Direction: South-South-West

ζ1 Scorpii is a variable supergiant star of spectral class B1 in the constellation of Scorpius.

ζ1 Scorpii visual magnitude is 4.73. Because of its moderate brightness, ζ1 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 ζ1 Scorpii (zeta1 Scorpii) star

DSS2 image of ζ1 Scorpii. The red arrow shows the motion of ζ1 Scorpii during the next 100000 years (6.67 arcmin in Right Ascension and -6.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 16h 55m 45s

Declination -42° 24’ 04”

Hour Angle 01h 49m 07s

Sidereal Time 18h 44m 53s

J2000

Right Ascension 16h 53m 59s

Declination -42° 21’ 43”

Galactic Coordinates

Galactic Longitude 343.03°

Galactic Latitude 0.87°

Finder Chart

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Finder chart for ζ1 Scorpii (zeta1 Scorpii).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 4.73

Class Supergiant

Absolute magnitude -25.27

Spectral Type B1I

Color Index (B-V) 0.49

Temperature 6435K

The red dot in the diagram below shows where ζ1 Scorpii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of ζ1 Scorpii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

ζ1 Scorpii is distant 32,600,000.00 light years from the Sun and it is moving towards the Sun at the speed of 26 kilometers per second.

Distance (parsec) 10,000,000.00

Distance (light year) 32,600,000.00

Radial Speed -26 km/s

Proper Motion RA 0.004 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Bayer designation ζ1 Scorpii
(zeta1 Scorpii)

Henry Draper Catalogue HD152236

SAO Catalogue SAO227375

Hipparcos Catalogue HIP82671

Durchmusterung Catalogue CD-4211633

General Catalogue of Variable Stars Zet1 Sco

Visibility from Your Location

ζ1 Scorpii (zeta1 Scorpii) is currently not visible from Greenwich, UK

Set Location

Other stars in Scorpius