α2 Crucis (alpha2 Crucis)
α2 Crucis is a multiple main-sequence star in the constellation of Crux.
α2 Crucis visual magnitude is 1.73. Thanks to its high brightness, α2 Crucis is clearly visible when observed from locations with dark skyes, and should be also quite easily visible from light polluted areas.
The table below summarizes the key facts about α2 Crucis:
Celestial coordinates and finder chart of α2 Crucis
α2 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 α2 Crucis are provided in the following table:
The simplified sky map below shows the position of α2 Crucis in the sky:
Visibility of α2 Crucis from your location
Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
α2 Crucis (alpha2 Crucis) is currently not visible from Greenwich, United Kingdom [change]
Digitized Sky Survey image of α2 Crucis
The image below is a photograph of α2 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 α2 Crucis is -0.034 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.
Spectral properties of α2 Crucis
α2 Crucis belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.
α2 Crucis star system properties
α2 Crucis is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the α2 Crucis double sysyem: