Grus (Pronounciation:Grus, Abbrev:Gru, Latin:Gruis) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Grus takes up 365.513 sq. degrees of the night sky which equates to 0.89% of the night sky. Grus is the 45th largest in terms of size in the night sky.
The constellation name means The Crane . It was not one of the original constellations that had been devised by Ptolemy, instead it was created by Pieter Dirkszoon Keyser and Frederick de Houtman years later.
There are 7 stars that make up the main constellation. The hipparcos satellite scanned and detailed 1195 stars. There are 39 stars that can be seen with the naked eye in the constellation on a very clear night sky.
Grus is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Grus is a southern hemispheric constellation which means it can't be seen easily or at all from the northern hemisphere.
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 image at the top right of this page was generated using Night Vision, a free to use and download application by Brian Simspon.
You can't just go to one location and arrive at the constellation because the constellation is made up of stars at different locations and different distances. The nearest main star in the constellation is at a distance of 101.01 light years and the furthest main star is a distance of 309.45 light years. The average distance to the main stars is 187.30 light years.
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.
The nearest star to Earth is Gliese 832 which is roughly about 16.16 Light Years from the Earth. Gliese 832 is also the nearest star in the constellation of Grus with at least one orbiting exoplanet.
The furthest star that is located in the constellation is HIP 111026 and it is 163081.7 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 brightest star in Grus is Al Nair and is located about 105.32 light years from the Sun. The star has a apparent magnitude of 1.73 but an absolute magnitude of -0.72 when the star is viewed from a distance of 10 Parsecs or 32.6 Light Years. The star is recognised as being the brightest in the constellation as it has the Bayer status of Alpha.
The dimmest star that can be seen in Grus with the naked eye is HD 214953. 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.
There is no Greek Legend behind this constellation. It was created by Pieter Dirkszoon Keyser and Frederick de Houtman to fill in the voids in the astronomical charts.
|Is a Zodiac Sign||No|
|Brightest Star||Al Nair|
|Area||365.513 sq. deg.|
|Percentage of Night Sky||0.89%|
|Site Exoplanet Count||10|
|Meteor Shower Count||1|
|Nearest Star||Gliese 832|
|Nearest Star with Exoplanet(s)||Gliese 832|
|Brightest Star||Al Nair|
|Dimmest Star||HD 214953|
|Furthest Star||HIP 111026|
|Bright Star Count||39|
|Hipparcos Star Count||1195|
|Main Star Count||7|
|Messier Deep Space Object Count||0|
|Bordering / Neighbouring / Surrounding Constellations||Piscis Austrinus|
*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.
|IC 5201||Barred Spiral Galaxy||40 Million Ly||-46:2:2.16||22h 20h 59m 18|
|NGC7476||Galaxy||-43 05 57.74||23 05 11m 873|
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