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public  Ausejo, Spain Ausejo, Spain  ⓘ
TimezoneEurope/Madrid
Sunrise: 6:38 
Transit: 14:13 
Sunset: 21:47
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All Constellations » Crux » 

η Crucis (eta Crucis)

Below the horizon.  Never rises today
Alt: -22.27°   Az: 161.65°   Direction: South-South-East

η Crucis is a double giant star of spectral class F2 in the constellation of Crux.

η Crucis visual magnitude is 4.15. Because of its moderate brightness, η Crucis 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 η Crucis (eta Crucis) star
DSS2 image of η Crucis. The red arrow shows the motion of η Crucis during the next 10000 years (5.50 arcmin in Right Ascension and -6.17 arcmin in declination);

Celestial Coordinates

Apparent

12h 08m 13s
-64° 45’ 19”
21h 07m 36s
09h 15m 50s

J2000

12h 06m 52s
-64° 36’ 48”

Galactic Coordinates

298.18°
-2.15°

Finder Chart

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Finder chart for η Crucis (eta Crucis).

Magnitude, Color, Spectral Class

4.15
Giant

2.68
F2III
7217K

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

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

Star System Properties

η Crucis 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 η Crucis double sysyem:

4.15
11.65
7.5
44 arcsec

Distance, Radial Speed, Proper Motion

η Crucis is distant 64.19 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

19.69
64.19
9 km/s
0.033 arcsec/y
-0.037"/y

Alternative Designations

η Crucis
(eta Crucis)
SAO251742
SAO251742
Gl 455.2

Visibility from Your Location

η Crucis (eta Crucis) is currently not visible from Ausejo, Spain