Crux (Pronounciation:Krucks, Abbrev:Cru, Latin:Crucis) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Crux takes up 68.447 sq. degrees of the night sky which equates to 0.17% of the night sky. The constellation gets its name as it name means The Cross . It was not one of the original constellations that had been devised by Ptolemy, instead it was created by Johann Bayer years later.
Crux is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Crux is a southern hemispheric constellation which means it can't be seen easily or at all from the northern hemisphere.
The brightest star in Crux is Acrux. There are 2 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Crux. The current largest star so far identified in the constellation of Crux is Gacrux. For a list of named stars, that is stars that don't start HD or HIP, please visit Crux Star List Page.
The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Crux is 382. The number of stars that are of magnitude 6.0 or lower in the constellation is 33. The number of stars in the constellation that make up the outline is 4.
There are no deep space objects that were identified by Charles Messier in this constellation. There are no non-Messier deep space objects in this constellation that are covered at present on this site.
The nearest star to Earth is HIP 58910 which is roughly about 17.99 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HD 108147 which is about 124.21 Light Years. The furthest star that can be located in the constellation is HIP 58278 which is located about 108721.1 Light Years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.
The dimmest star that can be seen in Crux with the naked eye is HD 110506. The dim star has an apparent magnitude of 5.99. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan
The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.
|Is a Zodiac Sign||No|
|Area||68.447 sq. deg.|
|Percentage of Night Sky||0.17%|
|Site Exoplanet Count||2|
|Meteor Shower Count||1|
|Nearest Star||HIP 58910|
|Nearest Star with Exoplanet(s)||HD 108147|
|Dimmest Star||HD 110506|
|Furthest Star||HIP 58278|
|Bright Star Count||33|
|Hipparcos Star Count||382|
|Main Star Count||4|
|Messier Deep Space Object Count||0|
|*Non-Messier Deep Space Object Count||0|
*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.
The map was generated using Night Vision, an awesome free application by Brian Simpson.