3C 273: الفرق بين النسختين
[نسخة منشورة] | [نسخة منشورة] |
تم حذف المحتوى تمت إضافة المحتوى
ط بوت:صيانة V3، أضاف وسم مصادر أكثر |
ط بوت:الإبلاغ عن رابط معطوب أو مؤرشف V4.3 |
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سطر 97:
== وصلات خارجية ==
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* [http://www.aavso.org/vstar/vsots/ 3C 273: Variable Star Of The Season]
* [http://www.hubblesite.org/go/blackholes Black Holes: Gravity's Relentless Pull] Award-winning interactive multimedia Web site about the physics and astronomy of black holes from the Space Telescope Science Institute
* [http://www.nasa.gov/centers/goddard/news/topstory/2005/universe_objects.html NASA Goddard Space Flight Center: News of light that may be from population III stars]
* [https://web.archive.org/web/20060213182341/http://www.ebicom.net/~rsf1/qso-rsa.htm QSO Redshift Histograms for Incremental Apparent Magnitude Samples]
* [http://cas.sdss.org/dr4/en/proj/advanced/quasars/query.asp SDSS]
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