Your browser does not fully support modern features. Please upgrade for a smoother experience.
Submitted Successfully!
Thank you for your contribution! You can also upload a video entry or images related to this topic. For video creation, please contact our Academic Video Service.
Version Summary Created by Modification Content Size Created at Operation
1 handwiki Sirius Huang -- 870 2022-10-08 05:31:38

Video Upload Options

We provide professional Academic Video Service to translate complex research into visually appealing presentations. Would you like to try it?
No, upload directly Yes
Cite
If you have any further questions, please contact Encyclopedia Editorial Office.
HandWiki. Alpha Crucis. Encyclopedia. Available online: https://encyclopedia.pub/entry/28483 (accessed on 22 September 2026).
HandWiki. Alpha Crucis. Encyclopedia. Available at: https://encyclopedia.pub/entry/28483. Accessed September 22, 2026.
HandWiki. "Alpha Crucis" Encyclopedia, https://encyclopedia.pub/entry/28483 (accessed September 22, 2026).
HandWiki. (2022, October 08). Alpha Crucis. In Encyclopedia. https://encyclopedia.pub/entry/28483
HandWiki. "Alpha Crucis." Encyclopedia. Web. 08 October, 2022.
Alpha Crucis
Edit
The content is sourced from: https://handwiki.org/wiki/Astronomy:Alpha_Crucis

Alpha Crucis (α Crucis, abbreviated Alpha Cru, α Cru) is a multiple star system 321 light-years from the Sun in the constellation of Crux and part of the asterism known as the Southern Cross. With a combined visual magnitude of 0.76, it is the brightest star in Crux and the 13th brightest star in the night sky. It is the southernmost first-magnitude star, 2.3 degrees more southerly than Alpha Centauri. To the naked eye Alpha Crucis appears as a single star, but it is actually a multiple star system. Two components are visually distinguishable: α1 Crucis and α2 Crucis; alternatively designated α Crucis A and α Crucis B. Both are B-type stars, and are many times more massive and luminous than the Sun. α1 Crucis is itself a spectroscopic binary with components designated α Crucis Aa (also named Acrux) and α Crucis Ab. Its two component stars orbit every 76 days at a separation of about 1 astronomical unit (au).

crux asterism cru

References

  1. Hessman, F. V.; Dhillon, V. S.; Winget, D. E.; Schreiber, M. R.; Horne, K.; Marsh, T. R.; Guenther, E.; Schwope, A.; Heber, U. (2010). "On the naming convention used for multiple star systems and extrasolar planets". arXiv:1012.0707 [astro-ph.SR]. //arxiv.org/archive/astro-ph.SR
  2. Memoirs of the Rev. Walter M. Lowrie: missionary to China (1849), p. 93. Described as an "Americanism" in The Geographical Journal, vol. 92, Royal Geographical Society, 1938.
  3. "IAU Working Group on Star Names (WGSN)". https://www.iau.org/science/scientific_bodies/working_groups/280/. Retrieved 22 May 2016. 
  4. "Bulletin of the IAU Working Group on Star Names, No. 2". http://www.pas.rochester.edu/~emamajek/WGSN/WGSN_bulletin2.pdf. Retrieved 12 October 2016. 
  5. "IAU Catalog of Star Names". http://www.pas.rochester.edu/~emamajek/WGSN/IAU-CSN.txt. Retrieved 21 November 2016. 
  6. Richard Hinckley Allen, Star Names: Their Lore and Meaning, Dover Books, 1963.
  7. (in Chinese) 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN:978-986-7332-25-7.
  8. (in Chinese) 香港太空館 - 研究資源 - 亮星中英對照表 , Hong Kong Space Museum. Accessed on line November 23, 2010. http://www.lcsd.gov.hk/CE/Museum/Space/Research/StarName/c_research_chinengstars_a_al.htm
  9. Silva, Guilherme Marques dos Santos; Ribas, Felipe Braga; Freitas, Mário Sérgio Teixeira de (2008). "Transformação de coordenadas aplicada à construção da maquete tridimensional de uma constelação". Revista Brasileira de Ensino de Física 30: 1306.1. doi:10.1590/S1806-11172008000100007.  https://dx.doi.org/10.1590%2FS1806-11172008000100007
  10. Tokovinin, A. A. (1997). "MSC - a catalogue of physical multiple stars". Astronomy and Astrophysics Supplement Series 124 (1): 75–84. doi:10.1051/aas:1997181. ISSN 0365-0138. Bibcode: 1997A&AS..124...75T.  https://dx.doi.org/10.1051%2Faas%3A1997181
  11. "Acrux". The Hundred Greatest Stars. 2002. pp. 4. doi:10.1007/0-387-21625-1_2. ISBN 0-387-95436-8.  https://dx.doi.org/10.1007%2F0-387-21625-1_2
  12. Shatsky, N.; Tokovinin, A. (2002). "The mass ratio distribution of B-type visual binaries in the Sco OB2 association". Astronomy and Astrophysics 382: 92–103. doi:10.1051/0004-6361:20011542. Bibcode: 2002A&A...382...92S.  https://dx.doi.org/10.1051%2F0004-6361%3A20011542
  13. Eggleton, Peter; Tokovinin, A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society 389 (2): 869–879. doi:10.1111/j.1365-2966.2008.13596.x. Bibcode: 2008MNRAS.389..869E.  https://dx.doi.org/10.1111%2Fj.1365-2966.2008.13596.x
  14. Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal 122 (6): 3466–3471. doi:10.1086/323920. Bibcode: 2001AJ....122.3466M.  https://dx.doi.org/10.1086%2F323920
  15. Rizzuto, Aaron; Ireland, Michael; Robertson, J. G. (October 2011), "Multidimensional Bayesian membership analysis of the Sco OB2 moving group", Monthly Notices of the Royal Astronomical Society 416 (4): 3108–3117, doi:10.1111/j.1365-2966.2011.19256.x, Bibcode: 2011MNRAS.416.3108R.  https://dx.doi.org/10.1111%2Fj.1365-2966.2011.19256.x
  16. "Cassini raw image". NASA/JPL/Space Science Institute. https://saturn.jpl.nasa.gov/raw_images/197551/. Retrieved 2017-10-31. 
  17. Cassini "Kodak Moments" - Unmanned Spaceflight.com. Retrieved 2008-10-21 http://www.unmannedspaceflight.com/index.php?showtopic=1809&view=findpost&p=127561
  18. "Astronomy of the Brazilian Flag". FOTW Flags Of The World website. https://flagspot.net/flags/br_astro.html. 
More
©Text is available under the terms and conditions of the Creative Commons-Attribution ShareAlike (CC BY-SA) license; additional terms may apply. By using this site, you agree to the Terms and Conditions and Privacy Policy.
Upload a video for this entry
Information
Subjects: Astronomy & Astrophysics
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :
HandWiki
View Times: 2.0K
Entry Collection: HandWiki
Revision: 1 time (View History)
Update Date: 08 Oct 2022
Table of Contents
    Notice
    You are not a member of the advisory board for this topic. If you want to update advisory board member profile, please contact office@encyclopedia.pub.
    OK
    Confirm
    Only members of the Encyclopedia advisory board for this topic are allowed to note entries. Would you like to become an advisory board member of the Encyclopedia?
    Yes
    No
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    There is no comment~
    ${ textCharacter }/${ maxCharacter }
    Submit
    Cancel
    ${ selectedItem.replyTextCharacter }/${ selectedItem.replyMaxCharacter }
    Submit
    Cancel
    Confirm
    Are you sure to Delete?
    Yes No
    Academic Video Service
    Feedback