magnitude 2.2 Alpha Coronae Borealis. The yellow supergiant R Coronae Borealis is the prototype of a rare class of giant stars—the R Coronae Borealis variables—that...
55 KB (6,379 words) - 08:00, 1 October 2024
Sigma Coronae Borealis (σ CrB) is a star system in the constellation of Corona Borealis. It is a quintuple star system containing three sunlike main-sequence...
16 KB (1,476 words) - 20:59, 22 August 2024
Astrophysics Supplement Series, 47: 221–235, Bibcode:1982A&AS...47..221R. "Sigma Coronae Borealis - Variable of RS CVn type". SIMBAD Astronomical Database. Centre...
21 KB (996 words) - 08:40, 22 August 2024
M. (1986-06-01). "Rediscussion of eclipsing binaries. XV - Alpha Coronae Borealis, a main-sequence system with components of types A and G". The Astronomical...
18 KB (1,367 words) - 14:18, 6 October 2024
}} . From : R = L 4 π σ T e 4 {\displaystyle R={\sqrt {\frac {L}{4\pi \sigma {T_{e}}^{4}}}}} , where L {\displaystyle L} is the luminosity, R {\displaystyle...
149 KB (13,132 words) - 13:55, 8 October 2024
the Lambda Bootids, as well as the Theta Coronae Borealids and Xi Coronae Borealids. All of the Bootid-Coronae Borealid showers are Jupiter family comet...
73 KB (8,385 words) - 08:35, 18 August 2024
168476, is a hot blue extreme helium star, while RS Telescopii is an R Coronae Borealis variable. RR Telescopii is a cataclysmic variable that brightened as...
38 KB (4,048 words) - 02:35, 18 August 2024
Firmiana Coronae Firmianae Corona Borealis renamed to honor Count Leopold Anton von Firmian 1730 Corbinianus Thomas List where Corona Borealis is now Custos...
23 KB (774 words) - 16:04, 1 October 2024
prominent stars, Arcturus (α Boötis), Seginus (γ Boötis), Alphecca (α Coronae Borealis), and centered on Izar (ε Boötis). From the United Kingdom in particular...
29 KB (3,204 words) - 04:10, 12 July 2024
and supergiants Luminous blue variable Gamma Cassiopeiae variable R Coronae Borealis variable Eruptive binary RS Canum Venaticorum variable Cataclysmic...
43 KB (3,397 words) - 22:38, 4 October 2024
23 Alpha Cassiopeiae Star 2.230 Gamma Draconis Star 2.24 2.21 Alpha Coronae Borealis Binary star system 2.25 2.24 Zeta Puppis Star 2.26 2.23 Iota Carinae...
37 KB (1,546 words) - 21:08, 17 March 2024
750±150 L/Teff V384 Persei 750 – 937 L/Teff V466 Persei 750 L/Teff V Coronae Borealis 749 L/Teff GY Aquilae 748 – 920 AD TT Centauri 744 L/Teff UU Pegasi...
239 KB (10,325 words) - 14:04, 9 October 2024
itself into solar orbit. The B, G and R components of 73P, and Tau Coronae Borealis, May 1, 2006 The C component of 73P, and the Ring Nebula, May 8, 2006...
19 KB (1,738 words) - 13:22, 2 September 2024
(the Bright one of) the Broken (Ring) نير الفكة نَيِّر الفَکَّة Alpha Coronae Borealis Alpheratz (Surrat) al-Faras (Navel of) the Mare سرة الفرس سُرَّة الفَرَس...
35 KB (572 words) - 04:47, 2 July 2024
companions: upsilon Andromedae, rho (1) Cancri, tau Bootis, 16 Cygni and rho Coronae Borealis". Astronomy and Astrophysics. 336: 942–952. Bibcode:1998A&A...336....
174 KB (13,871 words) - 12:49, 8 October 2024
the Stefan–Boltzmann law: L = 4 π σ R 2 T eff 4 {\displaystyle L=4\pi \sigma R^{2}T_{\text{eff}}^{4}} where σ is the Stefan–Boltzmann constant. As the...
61 KB (6,826 words) - 12:04, 23 September 2024
four stars to be eclipsing binary stars: Beta Aurigae, Spica, Alpha Coronae Borealis and Delta Orionis. Although the selenium cell photometer was proving...
29 KB (3,880 words) - 20:14, 18 August 2024