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🌎  Greenwich, United Kingdom [change]

μ2 Crucis (mu2 Crucis)

μ2 Crucis is a variable and double main-sequence star in the constellation of Crux.

μ2 Crucis visual magnitude is 5.17. Because of its reltive faintness, μ2 Crucis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about μ2 Crucis:

5.17
Main-sequence
μ2 Crucis (mu2 Crucis) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of μ2 Crucis

μ2 Crucis is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of μ2 Crucis are provided in the following table:

12h 54m 36s
-57° 10’ 05”
303.37°
5.7°
Crux

The simplified sky map below shows the position of μ2 Crucis in the sky:

Finder chart μ2 Crucis (mu2 Crucis) star
Simplified finder chart for μ2 Crucis (mu2 Crucis).

Visibility of μ2 Crucis from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

μ2 Crucis (mu2 Crucis) is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of μ2 Crucis

The image below is a photograph of μ2 Crucis from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of μ2 Crucis is -0.035 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of μ2 Crucis (mu2 Crucis) star
DSS2 image of μ2 Crucis. The red arrow shows the motion of μ2 Crucis during the next 10000 years (-5.83 arcmin in Right Ascension and -0.17 arcmin in declination);

Distance of μ2 Crucis from the Sun and relative movement

μ2 Crucis is distant 361.02 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

110.74 pc
361.02 ly
19 km/s
-0.035 arcsec/year
-0.001 arcsec/year

Spectral properties of μ2 Crucis

μ2 Crucis belongs to spectral class B5 and has a luminosity class of V corresponding to a main-sequence star.

-0.05
B5V
11920K

The red dot in the diagram below shows where μ2 Crucis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of μ2 Crucis. Attribution: Richard Powell / CC BY-SA

μ2 Crucis star system properties

μ2 Crucis is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the μ2 Crucis double sysyem:

5.17
6.17
1
34.9 arcsec

Alternative designations of μ2 Crucis

μ2 Crucis
(mu2 Crucis)
SAO240367
SAO240367