Khác biệt giữa bản sửa đổi của “Sao Thiên Lang”

| title=Sirius | work=Dictionary.com Unabridged (v 1.1)

| publisher=Random House, Inc

ra={{RA|06|45|08.9173}}<ref name=simbada>[http://simbad.u-strasbg.fr/simbad/sim-id?Ident=name+sirius+a Database entry for Sirius A], [[SIMBAD]]. Truy cập online ngày 20 tháng 10 năm 2007.</ref><ref name=cg /> |

dec={{DEC|−16|42|58.017}}<ref name=simbada /><ref name=cg>Astrometric data, mirrored by SIMBAD from the [[Hipparcos]] catalogue, pertains to the center of mass of the Sirius system. See §2.3.4, ''[http://www.rssd.esa.int/SA/HIPPARCOS/docs/vol1_all.pdf Volume 1, The Hipparcos and Tycho Catalogues]'', European Space Agency, 1997, and the [http://vizier.u-strasbg.fr/viz-bin/VizieR-S?HIP%2032349 entry for Sirius] in the Hipparcos catalogue ([[Centre de Données astronomiques de Strasbourg|CDS]] ID [http://vizier.u-strasbg.fr/viz-bin/Cat?I/239 I/239].)</ref> |

| year=2001 | volume=548 | pages=953–965

| url=http://www.journals.uchicago.edu/doi/full/10.1086/319000

}}</ref> (A)

| mass=2.02<ref name="apj_630">{{chú thích tạp chí

| journal=Astronomy and Astrophysics

| url=http://arxiv.org/pdf/astro-ph/0306604

| doi=10.1051/0004-6361:20030994 }}</ref> (A)

| luminosity=25.4<ref name="apj_630" /> (A) /<br />0.026<ref>[[Luminosity#Computing between brightness and luminosity|Bolometric luminosity]] of Sirius B calculated from L=4πR²σT_eff⁴. (This simplifies to Ls=(Rs)^2*(Ts)^4, where Ls, Rs and Ts are Luminosity, Radius and Temperature all relative to solar values) See: {{chú thích sách

| date= July 8-13, 2004 | location =Poprad, Slovakia

| url =http://adsabs.harvard.edu/abs/2004IAUS..224....1A

| age=2-3 × 10⁸<ref name="apj_630" />

| gravity=4.33<ref name="iau224" /> (A)/8.57<ref name="apj_497" /> (B) }}