We use cookies to deliver essential features and to measure their performance. Learn more.
We're free & ads-free thanks to your support
public LocationGreenwich, UK
Sunrise: 5:07 
Transit: 13:06 
Sunset: 21:04
wb_twilight   (Nautical Twilight)   What's Visible Now?
All Constellations » Crux » 

Imai - δ Crucis (delta Crucis)

Below the horizon.  Never rises today
Alt: -77.65°   Az: 226.41°   Direction: South-West

Imai, also designated as δ Crucis (delta Crucis), is a variable sub-giant star of spectral class B2 in the constellation of Crux.

Imai visual magnitude is 2.8. Because of its brightness, Imai is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Imai is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere.

Image of Imai - δ Crucis (delta Crucis) star
DSS2 image of Imai. The red arrow shows the motion of Imai during the next 10000 years (-6.83 arcmin in Right Ascension and -1.50 arcmin in declination);

Celestial Coordinates


12h 16m 27s
-58° 53’ 06”
10h 50m 12s
23h 06m 39s


12h 15m 08s
-58° 44’ 56”

Galactic Coordinates


Finder Chart

Finder chart Imai - δ Crucis (delta Crucis) star
Simplified finder chart for Imai - δ Crucis (delta Crucis).

Magnitude, Color, Spectral Class



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

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

Distance, Radial Speed, Proper Motion

Imai is distant 363.84 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.

111.61 pc
363.84 ly
22 km/s
-0.041 arcsec/y
-0.009 "/y

Alternative Designations

δ Crucis
(delta Crucis)

Visibility from Your Location

Imai - δ Crucis (delta Crucis) is currently not visible from Greenwich, UK