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public LocationGreenwich, UK
Sunrise: 5:14 
Transit: 13:06 
Sunset: 20:58
wb_twilight   (Civil Twilight)   What's Visible Now?
All Constellations » Scorpius » 

ι1 Scorpii (iota1 Scorpii)

Below the horizon.  Never rises today
Alt: -33.92°   Az: 246.27°   Direction: West-South-West

ι1 Scorpii is a double supergiant star of spectral class F2 in the constellation of Scorpius.

ι1 Scorpii visual magnitude is 3.03. Because of its moderate brightness, ι1 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 ι1 Scorpii (iota1 Scorpii) star
DSS2 image of ι1 Scorpii. The red arrow shows the motion of ι1 Scorpii during the next 100000 years (0.00 arcmin in Right Ascension and -13.33 arcmin in declination);

Celestial Coordinates


17h 49m 18s
-40° 08’ 01”
06h 25m 56s
00h 15m 14s


17h 47m 35s
-40° 07’ 36”

Galactic Coordinates


Finder Chart

Finder chart ι1 Scorpii (iota1 Scorpii) star
Simplified finder chart for ι1 Scorpii (iota1 Scorpii).

Magnitude, Color, Spectral Class



The red dot in the diagram below shows where ι1 Scorpii is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of ι1 Scorpii. Attribution: Richard Powell / CC BY-SA

Star System Properties

ι1 Scorpii is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the ι1 Scorpii double sysyem:

37.5 arcsec

Distance, Radial Speed, Proper Motion

ι1 Scorpii is distant 1,791.21 light years from the Sun and it is moving towards the Sun at the speed of 28 kilometers per second.

-28 km/s

Alternative Designations

ι1 Scorpii
(iota1 Scorpii)

Visibility from Your Location

ι1 Scorpii (iota1 Scorpii) is currently not visible from Greenwich, UK