Ammas n umazellaw

Ammas n umazellaw d ammas n tuzzya n umazellaw n uɣaras n walim ɣef yiman-is, yaggug s wazal n 27,000±1,000 yifawatayen ɣef tegnit^{[1][2][3][4][5]} deg tnila n tezdemt n uneccab d Ophiuchus d tkureẓma deg wadeg yettfeǧǧijen yakk s waṭas deg umazellaw. Akken i ttɣilen imusnawen d akken yella dinna wemruj aberkan abarar deg wammas n umazellaw.^[6]

Ammas n umazellaw akken i d-tt-isseknew umsaddas 2MASS i d-ittaṭṭafen azenzar aderzeggaɣ, ammas n umazellaw yella deg yiɣmer iffawen n ufella (deg tama tazelmaṭ n tugna).

Asentem n tilin n wammas amazallaw d wuggug-is

S usrag n tilin n ugedṛuṛ agratraw ɣef teɣzi n uzlem n yiẓṛi, d ayen yettaǧǧan tazrawt d wannay n wammas n umazellaw d ayen imrayen (iweɛṛen) s uzenzar imeẓri neɣ s unegjenjaṛ neɣ s uzenzar n X. Isalan i d-kksen imusnawen seg wannay n uzenzar n gamma d X d tid yeflalen s tfasa yakk d wannay n azenzar aderzeggaɣ ilan teɣzi n tayyugt ɣezzifen

Deg useggas n 1918, Harlow Shapley yukez-d imsidgenn wammas n umazellaw i tikkelt tamezwarut ass mi yella izerrew asedger n iguza itrawen, dɣa yukez-iten-d akka: Aluy aɣɣad 17h45m40.04s, mil -29° 00' 28.1".

Amruj aberkan abarar

Tineẓẓi tatrawt

Ẓeṛ daɣen

Imniren

1. Reid, Mark J. (1993). "The distance to the center of the Galaxy". Annual review of astronomy and astrophysics. 31: 345–372. doi:10.1146/annurev.aa.31.090193.002021. Retrieved 2007-05-10. Unknown parameter |azemz n ufaylu= ignored (help); Unknown parameter |akla n ufaylu= ignored (help)
2. Eisenhauer, F.; Schödel, R.; Genzel, R.; Ott, T.; Tecza, M.; Abuter, R.; Eckart, A.; Alexander, T. (2003). "A Geometric Determination of the Distance to the Galactic Center". The Astrophysical Journal. 597: L121–L124. doi:10.1086/380188. Retrieved 2007-05-10. Unknown parameter |azemz n ufaylu= ignored (help); Unknown parameter |akala n ufaylu= ignored (help)CS1 maint: multiple names: authors list (link)
3. Horrobin, M.; Eisenhauer, F.; Tecza, M.; Thatte, N.; Genzel, R.; Abuter, R.; Iserlohe, C.; Schreiber, J.; Schegerer, A.; Lutz, D.; Ott, T.; Schödel, R. (2004). "First results from SPIFFI. I: The Galactic Center" (PDF). Astronomische Nachrichten. 325: 120–123. doi:10.1002/asna.200310181. Archived from the original (PDF) on 2007-06-21. Retrieved 2007-05-10. Unknown parameter |azemz n ufaylu= ignored (help); Unknown parameter |akala n ufaylu= ignored (help)CS1 maint: multiple names: authors list (link)
4. Majaess D. J., Turner D. G., Lane D. J. (2009). Characteristics of the Galaxy according to Cepheids, MNRAS Archived 2016-02-08 at the Wayback Machine
5. Gillessen, S. (2009). "Monitoring Stellar Orbits Around the Massive Black Hole in the Galactic Center". The Astrophysical Journal. 692 (2): 1075–1109. doi:10.1088/0004-637X/692/2/1075. Talɣa:Arxiv. Unknown parameter |coauthors= ignored (|author= suggested) (help); |access-date= requires |url= (help)
6. Schödel, R. (2002). "A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way". Nature. 419 (6908): 694–696. doi:10.1038/nature01121. PMID 12384690. Unknown parameter |coauthors= ignored (|author= suggested) (help); Cite has empty unknown parameter: |month= (help)