Acrux.md

confidential	public
has_id_wikidata	Q13102
isDeleted	false
isReadOnly	false
location	-63.1 173.35 400
SpocWebEntityId	27242
tags	astro/Star
type	Star
dv_star-class	B1
dv_star-class-id	28188
dv_has_	name name_ place_ value_for_ Acrux af ar ast az be be_tarask bs ca cs de de_ch dv el en en_ca en_gb es et eu fa fi fr he hi hr hu hy id it ja ko ku la lb lt mk nb nl nn oc pl pt pt_br ru sh sk sl sr sv tr uk uz vi war wuu yue zh Alpha Crucis نير نعيم Ácrux Α Xaç Акрукс Акрукс Alpha Crucis Acrux Acrux Acrux Acrux Acrux Άλφα Νοτίου Σταυρού Acrux Alpha Crucis Alpha Crucis Ácrux Acrux Acrux آلفا صلیب Acrux Acrux אקרוקס एक्रक्स तारा Alfa Južnog križa Alfa Crucis Ակրուքս Acrux Acrux アクルックス 아크룩스 Acrux Alpha Crucis Acrux Akruksas Акрукс Acrux Acrux Acrux Alpha Crucis Acrux Acrux Acrux Акрукс Akruks Acrux Alfa Južnega križa Akruks Acrux Acrux Акрукс Akruks Alpha Crucis Alpha Crucis 十字架二 十字架二 十字架二 altitude_ longitude latitude longitude_ latitude_ ly 400 -173.35 -63.1 velocity -0.004 velocity -0.02 mass_ brightness_ min max 8 8
dv_Zodiac-index	1
dv_ZodiacId	28112
dv_NextStarId	27256
dv_is_	same_as [[../../../WikiData/WD~Acrux,13102|WD~Acrux,13102]]
dv_has_name	Acrux
dv_has_place_altitude_ly	400
dv_has_place_longitude	-173.35
dv_has_place_latitude	-63.1
dv_has_place_longitude_velocity	-0.004
dv_has_place_latitude_velocity	-0.02
dv_has_value_for_brightness_min	8
dv_has_value_for_brightness_max	8
dv_is_same_as	[[../../../WikiData/WD~Acrux,13102|WD~Acrux,13102]]
aliases	Acrux Akruks Akruksas Alfa Crucis Alfa Južnega križa Alfa Južnog križa Alpha Crucis Ácrux Άλφα Νοτίου Σταυρού Α Xaç Акрукс Ակրուքս אקרוקס آلفا صلیب نير نعيم एक्रक्स तारा アクルックス 十字架二 아크룩스

[[Acrux]]

#has_/value_for_/depth_in_meters

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is_same_as = = this.dv_is_same_as

#has_/text_of_/abstract

Acrux is the brightest star in the southern constellation of Crux. It has the Bayer designation α Crucis, which is Latinised to Alpha Crucis and abbreviated Alpha Cru or α Cru. With a combined visual magnitude of +0.76, it is the 13th-brightest star in the night sky. It is the most southerly star of the asterism known as the Southern Cross and is the southernmost first-magnitude star, 2.3 degrees more southerly than Alpha Centauri. This system is located at a distance of 321 light-years from the Sun.

To the naked eye Acrux appears as a single star, but it is actually a multiple star system containing six components. Through optical telescopes, Acrux appears as a triple star, whose two brightest components are visually separated by about 4 arcseconds and are known as Acrux A and Acrux B, α1 Crucis and α2 Crucis, or α Crucis A and α Crucis B. Both components are B-type stars, and are many times more massive and luminous than the Sun. This system was the second ever to be recognized as a binary, in 1685 by a Jesuit priest.

α1 Crucis is itself a spectroscopic binary with components designated α Crucis Aa (officially named Acrux, historically the name of the entire system) and α Crucis Ab. Its two component stars orbit every 76 days at a separation of about 1 astronomical unit (AU).

HR 4729, also known as Acrux C, is a more distant companion, forming a triple star through small telescopes. C is also a spectroscopic binary, which brings the total number of stars in the system to at least five.

Wikipedia

Confidential Links & Embeds:

• [[../../../_Standards/astro/Star/Acrux|Acrux]]
• [[../../../_public/astro/Star/Acrux.public|Acrux.public]]
• [[../../../_internal/astro/Star/Acrux.internal|Acrux.internal]]
• [[../../../_protect/astro/Star/Acrux.protect|Acrux.protect]]
• [[../../../_private/astro/Star/Acrux.private|Acrux.private]]
• [[../../../_personal/astro/Star/Acrux.personal|Acrux.personal]]
• [[../../../_secret/astro/Star/Acrux.secret|Acrux.secret]]